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Carbon Monoxide Sensor - MQ-7

Carbon Monoxide Sensor - MQ-7
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 Carbon Monoxide Sensor - MQ-7Carbon Monoxide Sensor - MQ-7 
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SKU:  PPSEN-09403
Part Number:  SEN-09403
Brand:  SparkFun

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  (1 Review)

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 20 to 2000ppm.

This sensor has a high sensitivity and fast response time. The sensor’s output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.

This sensor comes in a package similar to our MQ-3 alcohol sensor, and can be used with the breakout board below.

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CO Gas sensor
Wednesday, 23 May 2012  |  Andrew

This sensor is to measure Carbon Monoxide concentrations, however the example provided is for a different sensor with different power requirements. This sensor requires both a 1.4V and 5V supply on the heater element to work properly. Other sensors in the

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