Gas Sensors

MQ-7 Carbon Monoxide Gas Module Sensors

Posted On June 21, 2019 at 11:17 am by / Comments Off on MQ-7 Carbon Monoxide Gas Module Sensors

Detection of gasCarbon Gas
The heating voltage5V +/- 0.2V AC/DC
Working temperature-10 to 50 degC (nominal temperature 20degC)
Working current140mA
Loop voltage10V (maximum DC 15V
Load resistance10K (adjustable)
Detection concentration range10-1000ppm
Humidity95% RH (nominal humidity 65% RH)

Product Description

This Carbon Monoxide (CO) gas sensor detects the concentrations of CO in the air and ouputs 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 5V.

MQ7 CO gas sensor

Material: Module

Size: 35mm × 22mm × 18mm

Detection of gas: carbon gas

1, the heating voltage: 5 ± 0.2V (AC · DC)

2, Working current: 140mA

3, loop voltage: 10V (maximum DC 15V)

4, load resistance: 10K (adjustable)

5, detection concentration range: 10-1000ppm

6, clean air voltage: ≤1.5V

7. Sensitivity: ≥3%

8. Response time: ≤1S (preheat 3-5 minutes)

9, Response time: ≤30S

10, the element power: ≤0.7W

11, the working temperature: -10 ~ 50 ℃ (nominal temperature 20 ℃)

12, Humidity: 95% RH (nominal humidity 65% RH