MQ-7B Carbon Monoxide Gas Sensor
MQ-7B Carbon Monoxide (CO) Gas sensor, suitable for sensing CO concentrations in the air.
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The MQ-7B is a simple to use Carbon Monoxide (CO) Gas sensor, suitable for sensing CO concentrations in the air.
This sensor has a high sensitivity and fast response time. The sensor’s output is an analog resistance. The sensor’s conductivity gets higher along with the CO gas concentration rising.
The drive circuit is very simple, Users can convert the change of conductivity to correspond output signal of gas
concentration through a simple circuit. All you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.
It is widely used in domestic CO gas leakage alarm, industrial CO gas alarm and portable CO gas detector
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