Detective Device Dealers in Kottayam

A metal detector is an electronic instrument which detects the presence of metal nearby. Metal detectors are useful for finding metal inclusions hidden within objects or metal objects buried underground. They often consist of a handheld unit with a sensor probe which can be swept over the ground or other objects. If the sensor comes near a piece of metal this is indicated by a changing tone in earphones or a needle moving on an indicator. Usually the device gives some indication of distance the closer the metal is the higher the tone in the earphone or the higher the needle goes. Another common type are stationary walk through metal detectors used for security screening at access points in prisons court houses and airports to detect concealed metal weapons on a persons body.   Types Walk Through Metal Detectors Hand Held Metal Detectors Metal Detector Technology Pinpoint Mode and Depth Indicator.

Flame detectors respond to the production of one or a combination of ultra-violet or infrared spectrums of electromagnetic radiation. These detectors are often used in situations where there is a potential for the rapid development of fire such as flammable liquids.