MQ-7 Carbon Monoxide (CO) Gas Sensor Module
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 ElectroHubCheapest | MQ-7 Carbon Monoxide Sensor Module | 70 EGP100 | View in store |
 UGE | CARBON MONOXIDE SENSOR Module MQ7 (MQ-7) | 75 EGP | View in store |
 Makers Electronics | MQ-7 Carbon Monoxide Sensor Module | 80 EGP | View in store |
 Microohm | MQ-7 CO Carbon Monoxide Coal Gas Sensor Module | 80 EGP100 | View in store |
 Most Electronics | MQ-7 (Carbon Monoxide /Gas Sensor) Module | 86.9 EGP100 | View in store |
 Ekostra | MQ-7 Carbon Monoxide CO Gas Sensor Module | 90 EGP | View in store |
 Circuits Electronics | Carbon Monoxide Sensor (MQ7) | 120 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 70 EGP
About this product
The MQ-7 is a metal-oxide gas sensor module that detects carbon monoxide in the air. It provides an analog output for measuring gas level and a digital output that switches when the level passes a threshold set by an onboard potentiometer. It is widely used in CO detection and air quality experiments with Arduino and other microcontrollers.
Specifications
- Target gas
- Carbon monoxide (CO)
- Operating voltage
- 5V
- Operating current
- 40mA
- Outputs
- Analog (AO) and digital (DO)
- Pins
- VCC, GND, AO, DO
- Sensor type
- MQ-7 (SNS-MQ7)
Frequently asked questions
What is the price of MQ-7 Carbon Monoxide (CO) Gas Sensor Module in Egypt?
MQ-7 Carbon Monoxide (CO) Gas Sensor Module currently costs between 70 and 120 EGP across 7 offers in Egypt.
Where can I buy MQ-7 Carbon Monoxide (CO) Gas Sensor Module in Egypt?
MQ-7 Carbon Monoxide (CO) Gas Sensor Module is available from ElectroHub, UGE, Makers Electronics, Microohm, Most Electronics, Ekostra, and Circuits Electronics. Compare the offers above to find the best price.
How do I read the CO level with an Arduino?
Connect AO to an analog input such as A0 and read it with analogRead(). The value changes with the CO concentration. Allow a warm-up period before readings settle.
What does the DO pin do and how is its threshold set?
The DO pin changes logic level when the gas level passes a threshold. Adjust the onboard potentiometer while watching the indicator LED to set the threshold for your test.
