MQ-7 CO Carbon Monoxide Coal Gas Sensor Module
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
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MQ-7 CO Carbon Monoxide Coal Gas Sensor Module
MQ-7 CO Carbon Monoxide Coal Gas Sensor Module
MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

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  • Product SKU: KG055
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Specification

Description

MQ-7 CO Carbon Monoxide Coal Gas Sensor Module detects the concentrations of CO in the air and outputs its reading as an analog voltage. The sensor can measure concentrations of 10 to 10,000 ppm.

The sensor can operate at temperatures from -10 to 50°C and consumes less than 150 mA at 5 V.

This module provides both digital and analog outputs. The threshold level for digital output can be easily adjusted using the preset on the board. The MQ-7 sensor module can be easily interfaced with microcontrollers, Arduino and etc.

Standard Test Conditions

  • Temperature: 20°C ± 2°C
  • Humidity: 65% ± 5% RH
  • Standard Test Circuit: Vc: 5.0V ± 0.1V; Vh(high):5.0V±0.1V
  • Vh(low): 1.5V±0.1V

Technical Details

  • Model : MQ-7
  • Operating voltage (v) : DC 5
  • Range : 10 ~ 1000 ppm
  • Characteristic gas : 100 ppm CO
  • Sensitivity : ≥ 3%.
  • Return time : ≤ 30 sec
  • Heating resistance : ± 31 Ω
  • Heating current : ≤ 180 mA
  • Heating voltage : 5.0V ± 2V / 1.5 ± 1V
  • Heating power : approx. 350 mW
  • Ambient temperature (°C) : -20 ~ + 50
  • Humidity : ≤ 95% RH
  • Oxygen content : 21%.

Physical Attributes

  • Length * Width * Height (mm): 32 x 20 x 15
  • Weight (gm) : 7

Integration with Arduino


Sample Code


Additional Details

  • The analog output voltage, the higher the concentration the higher the voltage.
  • The carbon monoxide detection with better sensitivity.
  • There are four screw holes for easy positioning.
  • With a long service life and reliable stability.
  • Rapid response and recovery characteristics.

Product Video

Documentation

Customer Reviews

Based on 8 reviews
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T
Taslim Arif Nuruz Zaman

MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

V
Vikas Agarwal

Thanks

K
Kethan Shetty

good

I
Indranil Adhikary

Received. Didn't test it yet.

H
Harshit NAGAR

Corresponds to the description. Delivered to Bangalore in 5 day.

T
Tiara Torp

MQ-7 CO Carbon Monoxide Coal Gas Sensor Module

S
Sanchit Sachan

the order sent very quickly. Tracked all the way. Order came in 2 days. Came in the composition of the general parcel. It's all right. recommend kitsguru

V
Vineet Tyagi

It's been quick, it comes well protected in bubble plastic and everything is perfect. A great salesman. Thank you very much kitsguru.