MQ 9

450

Technical Specifications:

Feature Specification
Gas Detection CO, CH4 (Methane), LPG
Operating Voltage 5V DC
Detection Range 10 – 10,000 ppm
Response Time ≤ 10s
Recovery Time ≤ 30s
Operating Temperature -10°C to 50°C
Analog Output 0 – 5V
Digital Output High/Low Signal
PCB Size 32mm x 20mm x 22mm
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Description

MQ 9

The MQ-9 gas sensor is a highly sensitive and reliable sensor designed for detecting carbon monoxide (CO), methane (CH4), and liquefied petroleum gas (LPG). This sensor operates using a metal oxide semiconductor (MOS) principle, where gas concentration changes its resistance, providing accurate measurements.

This Carbon Monoxide (CO) and flammable gas sensor MQ 9 detects the concentrations of CO and combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of CO from 10 to 1,000 ppm and flammable gas from 100 to 10,000 ppm.

It features a fast response time, high sensitivity, and long lifespan, making it perfect for applications such as air quality monitoring, gas leak detection, industrial safety, and home automation. The adjustable sensitivity via onboard potentiometer ensures flexible usage in different environments.


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