Computer Monitors Dealers in Ramdaspeth, Nagpur

• Brand Name: Omron HEM-7156
• Weight: Monitor 337 g approx without battery, Arm Cuff 163 g approx
• Model Number: HEM-7156
• Cuff Type: OMRON IntelliWrap Cuff
• Measurement Range (Pressure): SYS 60 to 260 mmHg. DIA 40 to 215 mmHg
• Usage/Application: Personal
• Cuff Circumference: fits arm curcumference 22 - 42 cm

• Type: Heart Rate Monitors
• Color: Metallic
• Voltage: 220V
• Application: Hospital Use
• Screen Size: 10inch, 12inch
• Frequency: 50HZ
• Feature: Durable, Fast Processor
• Warranty: 1year

See the heart rate pulses on LED by sensing blood flow through fingertip using the Heart-Beat Monitor. The Heart-Beat Monitor is the answer to questions like, How could anyone expect an ordinary light dependent resistor photo cell to 'see' through a fingertip in  LED Light and detect the change in blood flow as the heart pulsates? The secret is a high gain circuit, based on a dual op amp IC which can be either the low power CA3140. The LDR is connected in series across the 9V battery supply via a 100kOhms resistor (R2) and VR1 the minute signal used by the blood pulsing under the skin is fed to the non-inverting (+) input, pin 3, of IC1a via a 0.1µF capacitor. Pin 3 is biased by a high impedance voltage divider consisting of two 3.3M Ohms resistors. The feedback resistors to pin 2 set the gain to 11 times. The output of IC1a is fed via a 0.47µF capacitor and 220k Ohms resistor to IC2. This is configured as an inverting op amp with a gain of 45 so that the total circuit gain is about 500. The output of IC2 is used to drive an a LEDNote that the unit is designed to use the good quality light dependent resistor (LDR.) Other LDRs may require a change in the value of resistor R1& VR1. A light source such as a high brightness LED is required. All that is needed is a reasonably well-lit room, preferably natural daylight, to produce a healthy emit LED. Only when the hands are very cold does it make it a little more difficult to accurately count the pulses. To check your heart rate, carefully position your thumb or finger over the LDR and count the LED fluctuations for a period of 15 seconds. Then multiply the result by four to obtain your pulse rate. The circuit cannot be used if you are walking or running, etc.

• Display: LCD Digital Display
• Measuring Principle: Oscillometric Method
• Power Source: 4pcs AA alkaline battery DC, 6V or AC adapter
• Automatic power off: In 3 Minutes
• Packing Type: Box

• Condition: New
• Usage: Clinic, Hospital
• Portable: Yes
• Material: ABS
• Digital: Yes
• Display Size: 60x40.5 mm

We are the leading manufacturers, exporters and supplier of this products.

• Brand Name: HP, Lenovo, Dell, Samsung
• Screen Size (in inches): any size
• Warranty: Yes
• Additional Features: HDMI, VGA

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