MQ-7 – Carbon Monoxide Gas Sensor Module

₪23.00

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 10 to 500ppm.

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.

In stock (can be backordered)

SKU: MOD-005957 Categories: , Tags: , , , , , , ,
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Description

The gas sensing material used in the MQ-7 gas sensor is tin dioxide (SnO2), which has low conductivity in clean air. When carbon monoxide gas exists in the environment where the sensor is located, the conductivity of the sensor increases with the increase of carbon monoxide gas concentration in the air.

Features

  • Sensitive for carbon monoxide
  • Output voltage boosts along with the concentration of the measured gases increases
  • Fast response and recovery
  • Adjustable sensitivity
  • Signal output indicator

Specification

  • Power: 2.5V ~ 5.0V
  • Dimension: 40.0mm * 21.0mm
  • Mounting holes size: 2.0mm
  • Boost Chips: PT1301

Pinouts

PIN Description
DOUT Digital data output
AOUT Analog data output
GND Ground
VCC Power input (2.5V ~ 5.0V)

Documentation

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