MQ-7B - 10V CO Carbon Monoxide Gas Sensor Plastic Cap

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Evelta SKU:
Manufacturer Part Number:
₹297.36 inc. GST
₹252.00 ex. GST
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Sensitive material of MQ-7B gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO at low temperature(heated by 1.5V).The sensor’s conductivity gets higher along with the CO gas concentration rising. At high temperature(heated by 5.0V),it cleans the other gases adsorbed at low temperature. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.


Extra Information

Winsen Sensor
Sensor Type:
Standard Encapsulation:
Plastic cap
Target Gas:
Carbon Monoxide CO
Loop Voltage:
< =10V DC
Heater Voltage:
5.0V AC or DC (High tem.), 1.5V AC or DC (Low tem.)
Detection range:
10~500ppm CO
Load Resistance:
Heater Time:
60S (High tem.), 90S (Low tem.)
Rs(in air)/Rs(in 150ppm CO)>=5
Output Voltage:
2.5V~4.3V (in 150ppm CO)
Heater consumption:
< =900mW
Heater Resistance:
29Ohm (room tem.)
Tem. Humidity:
20C, 55%+-5%RH
Concentration Slope:
< =0.6(R300ppm/R50ppm CO)

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.