The gas sensitive material used in the MQ-2 gas sensor is tin dioxide (SnO2) with low conductivity in clean air. Different types and concentrations of sensitive gases have different resistance values, and a simple circuit can convert the change in conductivity into an output signal corresponding to the gas concentration.
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4~20mA and RS485. Fixed gas detector adopts advanced catalytic gas sensor or electrochemical sensor, which can translate the gas concentration in the air to the digital signal output. fixed gas detector/transmitter.
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(This device can set two-level alarming value. The detector can rise the acousto-optic alarming when the detected concentration reaches the preset value. 9) Display: large screen digital LCD.
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This device can set two-level alarming value. The detector can rise the acousto-optic alarming when the detected concentration reaches the preset value.
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The detector is of excellent sensitivity and repeatability, which makes it very easy to use and maintain. what's more, the detector is water-proof, dust-proof and explosion-proof. Gas curve display.
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Portable single gas detector can make continuous detection to combustible and toxic gases. It has good sensitivity and reproducibility. The shell adopts special high strength material and anti-smooth rubber, with the characters of water-proof and dust-proof.
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Multi-Gas Detector, Replaceable Battery No, Product Type Multi-Gas Detector, Display Screen Type LCD, Includes Probe No, Housing Color Black, Gas Detected Carbon Monoxide, Combustible Gas, Hydrogen Sulfide, Oxygen, Communication Protocol Bluetooth, Series BW Clip, Sub-Brand BW, Rechargeable Battery No, Temperature Code T4.
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Dual color backlight prompt: When the detector detects combustible gas, the simulation bar increases with the increase of gas density, the buzzer sound accelerates with the increase of concentration, and the motor vibration strengthens with the increase of concentration.
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