MQ-9

The MQ9 gas sensor module is useful for gas leakage detecting, it used the sensitive material SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature (heated by 1.5V). The sensors conductivity is more higher along with the gas concentration rising. When high temperature (heated by 5.0V), it detects Methane, Propane etc combustible gas and cleans the other gases adsorbed under low temperature. MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor could be used to detect different gases contains CO and combustible gases, it is with low cost and suitable for different application.

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Gas Leak and High Temperatures Detector

“The project was made with the intention of being used at home, being a simple gas leak and high temperatures detector that uses ESP-01 and sends an alert by the IFTTT to your phone. For the project the following …

Pocket Size CO (carbon Monoxide)detector

“As the name says this is a pocket sized CO detector which is used to detect Carbon monoxide in air our goal was to make this device portable and which fits in pocket size. pocket size in sense it should …

Precise Air Quality Monitoring System (Portable)

“In this Instructable, I will walk you through the steps to build an Precise Air Quality monitoring system. It consists of an Arduino R3, 2 Grove sensors along with 2 other MQ gas sensors to keep the data in check …

Air Pollution Detector

“This device is intended to provide the user with a cost-efficient means of determining air quality. Our sensor focuses on the five components of the Environmental Protection Agency’s Air Quality Index: ozone, particulate matter, carbon monoxide, sulfur dioxide, and …