MQ-7 Carbon Monoxide Gas Sensor

  • MQ-7 Carbon Monoxide Gas Sensor
  • MQ-7 Carbon Monoxide Gas Sensor
  • MQ-7 Carbon Monoxide Gas Sensor
  • MQ-7 Carbon Monoxide Gas Sensor
  • MQ-7 Carbon Monoxide Gas Sensor
  • MQ-7 Carbon Monoxide Gas Sensor
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The MQ-7 carbon monoxide gas sensor module senses concentrations of CO in the air. The MQ-7 carbon monoxide gas sensor module can detect CO gas concentrations from 20 to 2000ppm.

A highly sensitive sensor with a quick response time that uses analog resistance as an output and is extremely easy to connect with the use of Arduino as well as other devices.

The MQ-7 carbon monoxide gas sensor modules sensitivity is manually adjusted and not calibrated.



  • Input voltage: DC5V.
  • Power dissipation: 150mA.
  • DO output: 0.1-5V.
  • AO output: 0.1-0.3V.
  • Detectable concentration: 20 – 2000ppmCO.
  • High-quality double panel design.
  • Power and TTL signal output indication.
  • Has better sensitive detection for carbon monoxide.
  • Has a long service life and reliable stability.
  • Suitable for the detection of carbon monoxide, gas, etc..
  • Characteristic Gas:100ppmm co.
  • Module size: 32(L) x 20(W) x 22(H)



  • 1 x MQ-7 Carbon Monoxide Gas Sensor Module

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We ship Australia wide to all addresses, including PO Box, Parcel Locker, etc.

The following shipping options available are listed below:

Australian Orders

  • Standard Shipping – Free (low cost / small products) – Sent via standard Australia Post stamped mail, 3 – 7 business days delivery depending on location, minimal tracking.
  • Standard Shipping – Free (higher cost / larger products) – Sent via Australia Post Parcel Service or Courier Service, depending on location and mailing address, 2 – 5 business days delivery, with full tracking.
  • Express Post – $12.00 (Cost may be higher depending on product size) – Sent via Australia Post Express Service, 1 – 2 business days for metro orders, potentially longer for orders outside of metro zones, with full tracking.

Orders outside of metro orders can take 2+ days longer than the estimates stated above.

International Orders

Shipping costs for international orders vary depending on location and package size, where possible we have kept this to flat rate charges to reduce confusion.

International orders are shipped through Australia Post and Sendle courier service depending on the most economical at the time.

Pick Up
In-person pickup is currently not available. If the order is urgent, please contact us to see what can be arranged.

If you have any questions, please have a look at the customer service portal where you will find answers to many common questions, or you can reach out to us through the contact us page.

More Information

If you would like more information regarding placing international orders, please view the faq page under the “Do you accept international orders?” section.