MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

MOD-MQ7

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MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

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MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

For home, carbon monoxide detection device environment. Suitable for carbon monoxide and gas detection.

Module Features:
Detection of concentration: 10-1000ppmCO
Loop voltage Vc: <=10V DC
Heater voltage Vh: 5.0V 0.2V ACorDC(high)
Load resistance: adjustable.
Heater resistance RH: 31ohm 3 ohm(room temperature)
Heater power consumption PH: <=350mW

Standard test conditions:
Temperature: 20 degree 2 degree
Humidity: 65% 5% RH
Standard test circuit: Vc: 5.0V 0.1V; Vh(high):5.0V0.1V
Vh(low):1.5V0.1V

1, The analog output voltage, the higher the concentration the higher the voltage.
2, The carbon monoxide detection with better sensitivity.
3, There are four screw holes for easy positioning;
4, Product Dimensions: 32 (L) * 20 (W) * 22 (H)
5, With a long service life and reliable stability
6, Rapid response and recovery characteristics

Electrical properties:
Input voltage: DC5V power (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V

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