HANNA EQUIPMENTS (INDIA) PRIVATE LIMITED Kharghar, Navi Mumbai, Maharashtra

Features at-a-glance     Built in temperature sensor for Automatic Temperature Compensated measurements.     Renewable junction to clear any clogging that causes readings to drift and be erratic .     Stability indicator that disappears once a stable reading is obtained .     Automatic calibration to one or two points at a push of a button.     Uses Hanna's Quick Cal pH/EC standard with a pH value of 6.86. The standard can also be used to calibrate conductivity meters to 5,000 μS/cm .     Battery % level remaining displayed at start up.     Low battery indicator that is displayed when less than 10% battery life is remaining.

Type : Type

Weight : 65 g (2.3 oz.)

More Options, More ChoicesGroLine EC/TDS testers include both a standard handheld conductivity tester and a unique version with a pencil style conductivity probe for the direct insertion into soilless media. This handy meter can be used to monitor the salt build up of the growing medium to avoid burning plants with excess nutrients.Big on Features and AffordableGroLine EC/TDS testers meters feature automatic calibration, stability indicator, and automatic shut-off. Each of these features has their own benefits but the end result is a high performance meter that provides a precision laboratory measurement.Multiple Measuring ModesGroLine pocket meters include a version that offers both Conductivity (EC) and Total Dissolved Solids (TDS) measuring modes. The EC measuring mode has an expanded scale to measure up to 6.00 mS/cm while TDS measuring range is up to 3999 ppm using a 0.7 conversion factor.

Brand Name : Hanna

Weight : 74 g

Replaceable pH electrodewith extractable junctionGroLine waterproof pocket pH/EC/TDS meter uses a cartridge design replaceable electrode that does not have any pins to align or that can be broken. Simply insert and turn to lock in place. The replacement pH electrode also has an extractable junction that is used to clear any clogging that occurs with use resulting in erratic and drifting readings.Quick Cal ModeQuick Cal mode allows the user to perform a single point pH and EC/TDS calibration with one solution. Simply enter calibration mode and the meter will prompt to confirm calibration to pH 6.86 and 5.00 mS/cm.Multiparameter Measuring ModesGroLine portable meters offer both Conductivity (EC) and Total Dissolved Solids (TDS) measuring modes. The EC measuring mode has an expanded scale to measure up to 6.00 mS/cm while TDS measuring range is up to 3999 ppm using a 0.7 conversion factor.

Weight : 100 g (3.5 oz.)

pH Range : 0.00 to 14.00 pH

Features at-a-glance: Backlit 128 x 64 Pixel Graphic LCD Display COD and 40 key water and wastewater quality parameters with 73 different methods Built-in Reaction Timer for Photometric Measurements Absorbance mode Digital pH Electrode Input: Measure pH and temperature with a single probe Data Logging : Up to 1000 photometric and pH readings Connectivity : USB Battery Status Indicator Error messeges : Self Daignostics

Suitable Industries for Application of Visible Spectrophotometer :     Water & Wastewater (Municipal and Industrial)     Boilers & Cooling Towers     Chemical Industries     Educational Institutes     Agriculture,     Aquaculture & Aquariums     R & D and more Specifications :Wavelength Range340 to 900 nm Wavelength Resolution1 nm Wavelength Accuracy±1.5 nm Measurement Modes Transmittance (% T), absorbance (abs), concentration with choice of units (ppm, mg/L, ppt, °f, °e, ppb, meq/L, μg/L, PCU, P fund, pH, dKH, °dH, meq/kg or no measurement unit)Wavelength Selection automatic, based on the selected method (editable for user methods only)Light Source tungsten halogen lamp Optical System split beam sample and reference light detectors Wavelength Calibration Internal, automatic at power-on, visual feedback Stray Light<0.1 % T at 340 nm with NaNO2Spectral bandwidth5 nm (full width at half maximum)Sample Cell16 mm round, 22 mm round, 13 mm vial, 10 mm square, 50 mm rectangular (with automatic detection)Programs (Factory/User)Up to 150 factory (85 pre-loaded); up to 100 user developed Data Points Stored Up to 9999 measured values Export Capability.csv file format, .pdf file format Connectivity(1) USB - A (mass storage host); (1) USB - B (mass storage device)Battery Type / Life3000 measurements or 8 hours Power Supply15 VDC power adapter; 10.8 VDC Li-Ion rechargeable batteryEnvironment0 to 50 °C (32 to 122 °F); 0 to 95% RHDimensions155 x 205 x 322 mmWeight3 kg (6.6 lbs)Ordering InformationHI-801 is supplied with 22 mm sample cuvette and cap (4), 10 mm square, 13 mm round and 16 mm round cuvette adapters, cloth for wiping cuvettes, scissors, USB cable, lithium ion rechargeable battery, 115VAC to 15VDC power adapter, USB drive, instruction manual, and instrument quality certificate.

Application : Laboratory Use, Industrial Use

Type : Portable

Light Source : Tungsten Halogen Lamp

Wavelength Accuracy : + or - 1.5 nm

Quick Cal Dual-Purpose Calibration SolutionWith GroLine Quick Cal solution only one solution is needed to calibrate both pH and conductivity. This dual-purpose calibration solution is used with compatible meters with the Quick Cal mode or with pH and conductivity meters that calibrate to pH 6.86 and 5.00 mS/cm, respectively.Supplied with Certificate of AnalysisAll GroLine pH and Conductivity/TDS standards in a 230 ml bottle are supplied with a Certificate of Analysis (COA). The COA contains the information regarding the traceability of the solution to NIST traceability standard. Information includes Standard Reference Material (SRM) used for calibration, lot number, and date of production.Right Size, Right PriceGroLine calibration solution is available in convenient 230 ml bottle size due to the frequency of use. Infrequent use would include users that calibrate and measure on a weekly or monthly basis. With infrequent use it is important that the solution be used within six months of opening the bottle. After that it should be changed out since the measurements will only be as good as the calibration solution, which degrades over time. For added convenience, the Quick-Cal Solution is also available in 20 ml sachets.

Usage : Laboratory

Brand Name : Hanna

Accuracy : +/- 0.1 pH

GroLine Cleaning SolutionMaintaining a clean pH electrode is vital for not only in getting an accurate pH measurement but also ones that are drift free. Any coating to the sensitive glass bulb or clogging of the junction will impede the electrical circuit resulting in erratic and misleading readings. GroLine cleaning solution ensures the maximum performance from the pH electrode to provide readings that you can depend on.GroLine Storage SolutionAll glass pH electrodes need to be stored properly to guarantee an accurate calibration and to protect the pH electrode from premature failure. A few drops of storage solution will maintain the hydrated layer on the glass bulb and prevent the reference junction and electrolyte from drying out. GroLine storage solutions are specifically formulated to accomplish the task and maximize the life of the pH electrode.Right Size, Right PriceGroLine calibration cleaning and storage solution is available in convenient 230 ml bottle size.

Type : Ph Electrode

Condition : New

Feature : High Clarity

Brand Name : Hanna

Details Ideally, when performing electrochemistry measurements, the sample being tested should be stirred. The use of a magnetic stirrer allows for proper mixing and the sample to be homogenous in consistency and temperature. The stirring of the sample also helps speed up the response time for a sensor to achieve a stable reading. Compact & Cost-Effective - The HI190M-2 mini-magnetic stirrer is compact and lightweight, allowing for easy handling in the laboratory environment. Limited area on laboratory benchtops is no longer a concern with this durable, space-saving stirrer. Power-indicating LED lights also assure users at a distance that the stirrer is in operation. The durable plastic covering will resist harmful effects of accidentally spilled chemicals. The HI190M-2 magnetic mini-stirrer is cost-effective for the customer that does not need the added expense of a heating element. The advanced design incorporates electronic controls that allow the user to easily regulate the speed with great precision. Speedsafe™ - Often in the lab, a sample is removed from a stirrer before the speed is adequately reduced. Normally this would cause the internal motor to accelerate until it is damaged. To control the speed from changes in viscosity or removing of the load the HI190M-2 magnetic mini-stirrer incorporates the Speedsafe™ mechanism. With Speedsafe™, a speed sensing device (opto-sensor) is coupled with an FVC (frequency voltage converter) to monitor the stirring speed. As the speed reaches a preset maximum level, the speed limiter shuts down the VCO (voltage-controlled oscillator) to slow down the motor speed. This ensures that when the load is suddenly removed from the stirrer, the motor will not accelerate to such a high speed that will be hazardous to both the user and the stirrer; a feature not commonly found in conventional stirrers. Fuse Protection - For safety, in the event of a short circuit, the HI190M-2 is equipped with a replaceable fuse. The circuitry of the HI190M-2 is grounded to the case for additional protection

Weight : 640 g (1.4 lbs.)

Details : HI1288 Multiparameter ProbeThe HI1288 multiparameter probe includes pH, EC/TDS, and temperature measurement. A solid-state pre-amplifier is integrated into the probe to protect against interference from transient electrical noise. Amperometric conductivity probe Built-in temperature sensor     Easy-to-clean -  The sensor is easy to clean and maintain by design pH sensor with extendable cloth junction - The HI1288 multiparameter probe features a cloth junction that can be pulled longer, effectively increasing the life of the probe pH Calibration - Automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) pH/EC Probe - HI1288 PVC body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector and 1m cable Ordering Information - HI991301P is supplied complete with HI 1288 probe, batteries, rugged carrying case and instructions. Features at-a-glance     Easy-to-clean and maintain     Multi-level LCD display     On-screen tutorial messages for calibration and setup     Automatic Temperature Compensation     Automatic one or two-point pH calibration     BEPS: Alerts the user in the event that low battery power could adversely affect the readings     Battery % displayed on startup     Compact, heavy duty, and waterproof

Weight : 205 g (7.2 oz.)

Details     The HI991300P portable meter features a large multi-level  LCD which displays both pH, low-range EC or TDS and temperature readings simultaneously. The pH readings are displayed with a 0.01 resolution and an accuracy of +/-0.01 pH while the EC and TDS readings are displayed with a 0.01 mS/cm and 10 ppm (mg/L) resolution and 2% full-scale accuracy. The EC range of the HI991300P is from 0 to 3999 µS/cm and TDS is from 0 to 2000 ppm using the 0.45 conversion factor. The EC to TDS conversion factor is selectable 0.45 and 1.0. A built-in temperature sensor allows for automatic temperature compensated measurements of pH and .  The HI991300P has many advanced features that are found in more expensive portable instrumentation including automatic calibration, buffer/standard recognition and temperature compensation. The LCD screen has indicators for calibration status and stability, as well as on-screen tutorial messages. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.  The supplied HI1288 is a 3-in-1 pre-amplified multiparameter probe that measures pH, EC/TDS, and temperature within a single polypropylene body. The amplifier for the pH electrode prevents interference from humidity and sources of electrical noise include circulating pumps, motors, and ballasts for grow lights. The design consideration for the HI991300P is ideal for measuring the pH, EC/TDS, and temperature in greenhouses, hydroponics, environmental monitoring, water treatment, wastewater treatment and boilers and cooling towers. Simplified one button calibration - One or two point pH calibration is automatic to a pre-programmed buffer set (4.01/7.01/10.01 pH or 4.01/6.86/9.18) or single point pH and EC calibration with the Hanna Quick Cal calibration solution. To perform a quick cal calibration, simply press and hold the left power/mode button while in measurement mode for three seconds and let go to enter calibration mode. Once both pH and EC are calibrated "CAL OK" is displayed and the meter returns to measurement mode HI1288 polypropylene body amplified pH electrode with built-in EC/TDS and temperature sensors - The HI991300P is supplied with an amplified polypropylene body pH/EC/TDS/temperature probe. The built-in amplifier will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include circulating pumps, motors, and ballasts for grow lights. pH Calibration - Automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) EC Calibration - Automatic, one-point at: 1382 ppm (CONV=0.5), 1500 ppm(CONV=0.7), 1413 µS/cm pH/EC Probe - HI1288 PVC body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector and 1m cable Ordering Information - HI991300P is supplied complete with HI 1288 probe, batteries, rugged carrying case and instructions. Features at-a-glance 3 sensors in a single probe pH electrode - Preamplified for resistance to electrical noise including that generated by pumps and ballast EC/TDS sensor - amperometric two pole design Temperature - NTC sensor for accurate temperature measurement and compensation Waterproof - Designed to withstand the humidity of a growing environment Wide pH Range - pH range is from 0.00 to 14.00 pH Selectable EC to TDS conversion factor Choice of either a 0.5 or 0.7 conversion factor 0.5 (500 CF) conversion factor is for an EC reading of 1000 μS/cm = 500 ppm 0.7 (700 CF) conversion factor is for an EC reading of 1000 μS/cm = 700 ppm  Automatic Temperature Compensation All readings are compensated for variations in temperature Temperature displayed in oC or oF along with pH, EC or TDS reading Stability indicator - Meter displays a clock tag that will disappear when the reading has achieved stability HOLD button - Freezes reading on the display to allow recording of measurement BEPS (Battery Error Prevention System - Meter will automatically shut off if there is not enough power to get an accurate measurement Battery % level at startup Low Battery Indicator - When the level is below 5%, the  battery symbol on the LCD blinks to indicate a low battery condition Auto-off - User selectable automatic shut-off ff to conserve battery life. Options are after 8 minutes, 60 minutes , or disabled.

Weight : 205 g (7.2 oz.)

Details : When the original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST’s ease of use, in combination with it’s affordability, made it the standard in EC and TDS measurement. Hanna continues the standard in EC and TDS testing with the DiST®6. Waterproof Exposed temperature probe for fast response High range EC/TDS 0.00 to 20.00 mS/cm 0.00 to 10.00 ppt (g/L) When the original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST’s ease of use, in combination with it’s affordability, made it the standard in EC and TDS measurement. Hanna continues the standard in EC and TDS testing with the DiST®6. These testers include features such as: a replaceable graphite electrode, adjustable TDS ratio, °C or °F measurement, Automatic Temperature Compensation (ATC) with adjustable β, battery level indicator, stability indicator, automatic shut-off and automatic calibration. The graphite conductivity electrode offers greater accuracy by resisting contamination by salt deposits in the sample. All of these features are packed in a floating, waterproof casing. These 3-in-1 testers are unmatched in EC/TDS/ temperature measurements. Ordering Information - HI98312 (DiST®6) is supplied with HI73311 EC/TDS probe, HI73128 probe removal tool, batteries and instructions. Features at-a-glance     Waterproof and designed to float     Automatic Temperature Compensation     HOLD button to freeze readings on the display     BEPS Alerts the user of low battery power that could adversely affect readings

Temperature Range : 0.0 to 60.0°C / 32.0 to 140.0°F

Dimension : 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’)

Details When the original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST’s ease of use, in combination with its affordability, made it the standard in EC and TDS measurement. Hanna continues the standard in EC and TDS testing with the DiST®5. Waterproof Exposed temperature probe for fast response Low range EC/TDS 0 to 3999 uS/cm 0 to 2000 ppm (mg/L) When the original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST’s ease of use, in combination with its affordability, made it the standard in EC and TDS measurement. Hanna continues the standard in EC and TDS testing with the DiST®5. This tester includes features such as a replaceable graphite electrode, adjustable TDS ratio, °C or °F measurement, Automatic Temperature Compensation (ATC) with adjustable β, battery level indicator, stability indicator, automatic shut-off and automatic calibration. The graphite conductivity electrode offers greater accuracy by resisting contamination by salt deposits in the sample. All of these features are packed in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC, TDS, and temperature measurements. Ordering Information - HI98311 (DiST®5) is supplied with HI73311 EC/TDS probe, HI73128 probe removal tool, batteries and instructions. Features at-a-glance Waterproof and designed to float Automatic Temperature Compensation HOLD button to freeze readings on the display BEPS Alerts the user of low battery power that could adversely affect readings

Temperature Range : 0.0 to 60.0°C / 32.0 to 140.0°F

Dimension : 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’)

The HI98309 UPW is the first pure water tester/conductivity meter to measure in 1/1000ths of micro-Siemens and provides on-the-spot and fast checks for minute traces of contamination in your water, assuring high quality of finished products in processes. A rugged, pocket-sized tester that features graphite electrodes to reduce polarization effects. The HI98309 comes already calibrated, done with freshly prepared low-conductivity solutions in factory due to the high instability of calibration solutions in the UPW range (below 2 µS/cm). Exposed temperature sensor for fast response Accurate readings of ultra low range 0.000 to 1.999 µS/cm Factory calibrated Details The HI98309 uses a conductometric measurement to determine the purity of water. The HI98309 Ultra Pure Water tester (UPW) enables users to check the purity of water, best suited for electronics and semiconductor industries. This tester is housed in durable casing that provides excellent protection against harsh industrial environments. The HI98309 features an amperometric graphite electrode that provides better repeatability in measurements, since they do not oxidize. An amperometric measurement of EC is based on Ohm’s Law, I = V/R, where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface, which will affect accuracy. The non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is needed, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester. Electrolytic conductivity, abbreviated as EC, is a measurement made in which electrical charges on atomic or larger sized particles in a medium are moved under the inŠfluence of a potential diff‹erence. EC is a measure of concentration however it is non-speci‡c for ion type. An ion is a charged particle present in the solution that contributes to the current Šflow. Ions are formed when a salt such as sodium chloride is dissolved in water to form particles having electrical charges. Sodium chloride, separates into Na+ and Cl-. This is a simplifi‡ed de‡nfinition for the measurement is a‹ffected by many things such as the type of ionic compound(s) dissolved in the water; the ions mobility, the solution viscosity, temperature as well as concentration. Electrical conductance, the ability of a substance to conduct an electrical current is the reciprocal of electrical resistance. “Conductance” and “Resistance” depend on the geometrical dimensions of the substance being measured. Conductivity and resistivity are “normalized” terms that are used to denote a bulk intrinsic property of a substance. This is the measurement a standardized EC probe on a Conductivity or resistivity meter provides. Conductivity measurements can be used to provide additional industry specifi‡c measurements; TDS, Salinity and USP compliant conductivity. Many of Hanna’s meters provide these measurements also. Features at-a-glance: Arrives pre-calibrated - Factory-calibrated with freshly prepared low-conductivity solutions Exposed Temperature Probe - Fast response to changes in sample temperature Graphite electrode - Reduced polarization effects

The HI98308 Pure Water tester is a rugged and reliable pocket-sized tester that offers quick and accurate readings. The HI98308 Pure Water tester features graphite electrodes to reduce polarization effects and an exposed temperature probe for fast response when compensating for temperature changes. Manual calibration is performed to a single point. Exposed temperature sensor Very low range EC - 0.0 to 99.9 μS/cm Single point manual calibration Details The HI98308 features an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC is based on Ohm’s Law, I = V/R, where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface, which will affect accuracy. The non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is needed, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester. The HI98308 uses a conductometric measurement to determine the purity of water. The HI98308 Pure Water Test (PWT) enables users to check the purity of distilled or demineralized water in laboratory or industrial environments. PWT is suited for fiŽelds such as printed circuit board washing, laundry, steam cleaning, checking car battery water and all areas where distilled, demineralized or pure water is used. This tester is housed in durable casing that provides excellent protection against harsh industrial environments. Electrolytic conductivity, abbreviated as EC, is a measurement made in which electrical charges on atomic or larger sized particles in a medium are moved under the inŠfluence of a potential diff‹erence. EC is a measure of concentration, however, it is non-speci‡c for ion type. An ion is a charged particle present in the solution that contributes to the current Šflow. Ions are formed when a salt such as sodium chloride is dissolved in water to form particles having electrical charges. Sodium chloride, separates into Na+ and Cl-. This is a simplifi‡ed de‡finition as the measurement is a‹ffected by many things such as the type of ionic compound(s) dissolved in the water; the ions mobility, the solution viscosity, temperature as well as concentration. Electrical conductance, the ability of a substance to conduct an electrical current is the reciprocal of electrical resistance. “Conductance” and “Resistance” depend on the geometrical dimensions of the substance being measured. Conductivity and resistivity are “normalized” terms that are used to denote a bulk intrinsic property of a substance. This is the measurement a standardized EC probe on a Conductivity or resistivity meter provides. Conductivity measurements can be used to provide additional industry specifi‡c measurements; TDS, Salinity and USP compliant conductivity. Many of Hanna’s meters provide these measurements also. Features at-a-glance: One-point calibration - Calibrate with 84 µS/cm EC solution using a screwdriver Exposed Temperature Probe - Fast response to changes in sample temperature Automatic Temperature Compensation (ATC) - Samples automatically compensated for temperature variations Graphite electrode - Reduced polarization effects

HI98304P is rugged and reliable pocket-sized testers that offer quick and accurate reading of  Conductivity. HI98304P has manual calibration facility and it can measure conductivity upto 19.99 mS/cm     Graphite electrodes     ATC     Simple one point calibration     Easy to use     Economical Details The DiST® family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and the printing industry. HI98304P can measure EC upto 19.99 mS/cm These testers feature an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC/TDS is based on Ohm’s Law, I = V/R where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface which will affect accuracy. The DiST’s non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is necessary, simply submerge the electrode tip into calibration solution (5.00 mS/cm or 12.88 mS/cm) and adjust the trimmer on the side of the tester.

HI98303P is rugged and reliable pocket-sized testers that offer quick and accurate reading of  Conductivity. HI98303P has manual calibration facility and it can measure conductivity upto 1999 μS/cm     Graphite electrodes     ATC     Simple one point calibration     Easy to use     Economical Details The DiST® family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and the printing industry. HI98303P can measure EC upto 1999 μS/cm These testers feature an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC/TDS is based on Ohm’s Law, I = V/R where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface which will affect accuracy. The DiST’s non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is necessary, simply submerge the electrode tip into calibration solution (1413 μS/cm) and adjust the trimmer on the side of the tester.

Weight : 95 g (3.4 oz.)

HI98302P is rugged and reliable pocket-sized testers that offer quick and accurate reading of TDS. HI98302P has manual calibration faccility and it can measure TDS upto 10.00 g/L (ppt)     Graphite electrodes     ATC     Simple one point calibration     Easy to use     Economical Details The DiST® family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and the printing industry. HI98302P can measure TDS upto 10.00 g/L (ppt) These testers feature an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC/TDS is based on Ohm’s Law, I = V/R where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface which will affect accuracy. The DiST’s non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is necessary, simply submerge the electrode tip into calibration solution (6.44 ppt) and adjust the trimmer on the side of the tester.

HI98301P is rugged and reliable pocket-sized testers that offer quick and accurate reading of TDS. HI98301P has manual calibration faccility and it can measure TDS upto 1999 mg/L (ppm)     Graphite electrodes     ATC     Simple one point calibration     Easy to use     Economical Details The DiST® family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and the printing industry. HI98301P can measure TDS upto 1999 ppm These testers feature an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC/TDS is based on Ohm’s Law, I = V/R where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface which will affect accuracy. The DiST’s non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is necessary, simply submerge the electrode tip into calibration solution (1382 ppm) and adjust the trimmer on the side of the tester.

Details The HI98130 makes measuring pH quick and easy! This lightweight, waterproof tester offers high accuracy pH, high range EC/TDS (0 to 3999 µS/cm EC/ 0.00 to 10.00 ppt TDS) and temperature measurements in a single handheld unit! No more switching between meters for your routine measurements. Waterproof Replaceable pH electrode with extractable junction Automatic calibration The HI98130 is a highly accurate, waterproof pH meter that can also measure EC/TDS in the high range (0.00 to 20.00 mS/cm EC/ 0.00 to 10.00 ppt TDS) and temperature. This floating, waterproof combination tester has an easy to read, LCD and an automatic shut-off. In addition, pH and EC/TDS readings are automatically temperature compensated (ATC) to prevent temperature-related variations in your measurements. For EC/TDS readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient β (BETA).  Replaceable pH Electrode Cartridge - The HI98130 tester features an easy to replace pH electrode cartridge with an extendable cloth junction. The extendable cloth junction helps increase electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted. Also, the sturdy, snap-in connector means there are no pins to bend or break! High Accuracy EC/TDS Graphite Probe - The graphite conductivity probe provides greater accuracy because it cannot be contaminated by salt deposits in the solution. The exposed temperature sensor provides fast response times and guarantees highly accurate temperature compensated readings. pH Calibration - automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) Ordering Information - HI98130 is supplied with HI73127 pH electrode and HI73128 electrode removal tool, batteries (4 x 1.5V) and instructions. Features at-a-glance 3 sensors in a single meter pH electrode with extractable junction Amperometric EC/TDS sensor Exposed temperature probe for faster EC/TDS readings Waterproof - Designed to float if accidently dropped in sample Wide pH Range - pH range is from 0.00 to 14.00 pH Selectable EC to TDS conversion factor - Choice of either a 0.45 or 1.0 conversion factor Automatic Temperature Compensation - All readings are compensated for variations in temperature. Temperature displayed in oC or oF along with pH, EC or TDS reading Stability indicator- Meter displays a clock tag that will disappear when the reading has achieved stability HOLD button - Freezes reading on the display to allow recording of measurement BEPS (Battery Error Prevention System - Meter will automatically shut off if there is not enough power to get an accurate measurement Battery % level at startup Low Battery Indicator - When the level is below 5%, the  battery symbol on the LCD blinks to indicate a low battery condition. Auto-off - Auto-off  feature automatically shuts off  meter after 8 minutes of non-use to maximize battery life

Weight : 100 g (3.5 oz.)

Details : The HI98129 makes measuring pH quick and easy! This lightweight, waterproof tester offers high accuracy pH, low range EC/TDS (0 to 3999 µS/cm EC/ 0 to 2000 ppm TDS) and temperature measurements in a single handheld unit! No more switching between meters for your routine measurements. Waterproof Replaceable pH electrode with extractable junction Automatic calibration The HI98129 is a highly accurate, waterproof pH meter that can also measure EC/TDS in the low range (0 to 3999 µS/cm EC/ 0 to 2000 ppm TDS) and temperature. This floating, waterproof combination tester has an easy to read, LCD and an automatic shut-off. In addition, pH and EC/TDS readings are automatically temperature compensated (ATC) to prevent temperature-related variations in your measurements. For EC/TDS readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient β (BETA). Replaceable pH Electrode Cartridge - The HI98129 tester features an easy to replace pH electrode cartridge with an extendable cloth junction. The extendable cloth junction helps increase electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted. Also, the sturdy, snap-in connector means there are no pins to bend or break! High Accuracy EC/TDS Graphite Probe - The graphite conductivity probe provides greater accuracy because it cannot be contaminated by salt deposits in the solution. The exposed temperature sensor provides fast response times and guarantees highly accurate temperature compensated readings. pH Calibration - Automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) Ordering Information - HI98129 is supplied with HI73127 pH electrode and HI73128 electrode removal tool, batteries (4 x 1.5V) and instructions. Features at-a-glance 3 sensors in a single meter pH electrode with extractable junction Amperometric EC/TDS sensor Exposed temperature probe for faster EC/TDS readings Waterproof - Designed to float if accidently dropped in sample Wide pH Range - pH range is from 0.00 to 14.00 pH Selectable EC to TDS conversion factor - Choice of either a 0.45 or 1.0 conversion factor Automatic Temperature Compensation - All readings are compensated for variations in temperature. Temperature displayed in oC or oF along with pH, EC or TDS reading Stability indicator - Meter displays a clock tag that will disappear when the reading has achieved stability HOLD button - Freezes reading on the display to allow recording of measurement BEPS (Battery Error Prevention System - Meter will automatically shut off if there is not enough power to get an accurate measurement Battery % level at startup Low Battery Indicator - When the level is below 5%, the  battery symbol on the LCD blinks to indicate a low battery condition. Auto-off - Auto-off  feature automatically shuts off  meter after 8 minutes of non-use to maximize battery life

Details Hanna's pHep®5 waterproof tester is an advanced pH meter that has many features found in more expensive portable and benchtop meters. This ergonomic meter measures from -2.00 to 16.00 pH with an accuracy of ±0.05 pH. pHep®5 features automatic one or two-point calibration to known buffer, automatic temperature compensation. The large multi level LCD display shows both pH and temperature readings simultaneously, while a stability indicator is displayed to alert the user when a stable reading has been obtained. The pHep®5 tester also features a replaceable pH probe that has a unique extendable cloth junction to clear any clogging that occurs. Waterproof Replaceable pH Electrode Automatic Two-Point pH Calibration   The pHep®5 is a waterproof pH tester with a 0.01 pH resolution and an accuracy of ±0.05 pH. It has many advanced features that are found in more expensive portable instrumentation. One or two-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®5 also features a replaceable electrode with a stainless steel round connector. This cartridge design has no pins to line up or that can break. The HI73127 replacement pH electrode also features an extractable cloth junction. The extractable cloth junction of the HI73127 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode. Features at-a-glance Waterproof - Designed to float if accidentally dropped in a tank Expanded pH Range - pH range is from -2.00 to 16.00 pH Automatic Temperature Compensation         All readings are compensated for variations in temperature         Temperature displayed in °C or °F along with pH reading Stability indicator - Meter displays a clock tag that will disappear when the reading has achieved stability HOLD button - Freezes reading on the display to allow recording of measurement BEPS (Battery Error Prevention System) - Meter will automatically shut off if there is not enough power to get an accurate measurement Auto-off - Meter automatically shuts off after 8 minutes of non-use to maximize battery life.

Weight : 100 g (3.5 oz.)

Details : Hanna's pHep®4 waterproof tester is an advanced meter has many features that can be found in portable and benchtop meters.  This ergonomic meter measures from -2.0 to 16.0 pH with an accuracy of ±0.1 pH. pHep®4 features automatic one or two-point calibration and automatic temperature compensation. The large multi level LCD display shows both pH and temperature readings simultaneously, while a stability indicator is displayed to alert the user when a stable reading has been obtained. The pHep®4 tester also features a replaceable pH probe that has a unique extendable cloth junction to clear any clogging that occurs. Waterproof Replaceable pH Electrode Automatic Two-Point pH Calibration The pHep®4 is a waterproof pH tester with a 0.1 pH resolution and an accuracy of ±0.1 pH. It has many advanced features that are found in more expensive portable instrumentation. One or two-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®4 also features a replaceable electrode with a stainless steel round connector. This cartridge design has no pins to line up or that can break. The HI73127 replacement pH electrode also features an extractable cloth junction. The extractable cloth junction of the HI73127 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode.      Features at-a-glance Waterproof - Designed to float if accidentally dropped in a tank Expanded pH Range-  pH range is from -2.0 to 16.0 pH Automatic Temperature Compensation         All readings are compensated for variations in temperature         Temperature displayed in °C or °F along with pH reading Stability indicator - Meter displays a clock tag that will disappear when the reading has achieved stability HOLD button -  Freezes reading on the display to allow recording of measurement BEPS (Battery Error Prevention System) - Meter will automatically shut off if there is not enough power to get an accurate measurement Auto-off - Meter automatically shuts off after 8 minutes of non-use to maximize battery life.

Weight : 100 g (3.5 oz.)

Details : The HI98121 is a waterproof pH, ORP and temperature meter. The housing of this tester has been completely sealed against humidity and is designed to float. Electrode replacement with the stainless steel round connector means there are no pins to bend or break during replacement. When the cloth junction becomes clogged and response time is sluggish, simply pull out 3 mm (1/8”) to clear the clogging which will improve response time and stability. The exposed stainless steel temperature sensor on these models facilitates faster and more accurate temperature measurement. Waterproof Replaceable pH Electrode Automatic Two-Point pH Calibration The HI98121 is a lightweight ergonomically designed tester. This tester is designed to float making it ideal for taking readings virtually anywhere. With the HI98121 it is possible to monitor both pH and ORP at the same time. The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment. By definition pH is the measurement of the voltage generated by an electrochemical cell at zero current. The potential generated is proportional to the thermodynamic activity of the ion being measured. Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Reduction Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction. An ORP sensor must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors. Features at-a-glance:         Waterproof         Automatic Temperature Compensation         HOLD feature         Simple to use         Economical

Details The HI98120 is a waterproof ORP and temperature handheld meter. The housing of this tester is completely sealed to protect against the intrusion of water and is also designed to float if accidentally dropped into a body of water. The HI73120 replaceable ORP electrode is a cartridge design with the stainless steel round connector. With this type of design there are no pins that can bend or break during replacement. The ORP electrode also hase has an extendable cloth junction. This type of junction allows for the renewal of the junction by simply pulling out 3 mm (1/8”) to clear any clogging which improves measurement response time and stability. The exposed stainless steel temperature probe on this meter facilitates a faster, accurate temperature measurement. Waterproof Replaceable ORP Electrode Extractable Junction Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Reduction Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction. An important part of the ORP probe is to have a sensor that is chemically inert; meaning it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold. Both are commonly used in the construction of ORP probes.  The platinum sensor is often preferred because it is mechanically simpler to produce. Platinum can be welded to glass and also has a similiar thermal expansion coefficient. Sensors made of gold cannot be welded to the glass and are often placed in plastic supports applied to the glass or plastic tube by means of tiny elastomeric bungs. Many industries rely upon ORP measurements including swimming pools, food processing, boilers and cooling towers, and plating. The measurement of ORP helps the user monitor the effectiveness of disinfecting compounds including chlorine and ozone. ORP is also used to monitor redox reactions including the use of bisulfite in the reduction of hexavalent chromium to trivalent chromium in plating wastewater. Features at-a-glance: Waterproof         IP67 rated         Protects the internal electronics of the meter from an ingress of water in the event that the meter is dropped into a tank or a body of water. Stability indicator -HI98120 features a stability indicator tag on the LCD that will disappear once the reading stabilizes.  Replaceable electrode         An electrode last approximately one to two years. It is possible to replace just the electrode and not have to buy a completely new meter.         The HI73120 ORP electrode is a simple cartridge design allows the sensor to be easily replaced whether in the lab or in the field. HOLD feature - Allows the reading to be frozen so that the reading can be documented. Auto-shut off - The meter automatically turns itself off after 8 minutes of use in order to conserve battery life in the event the meter is accidently left on. Battery % level -When the meter is turned on the battery % level is displayed as a percentage.