MQ-7

The MQ-7 is a Carbon Monoxide (CO) sensor suitable for sensing CO concentrations in the air. It can detect CO-gas concentrations anywhere from 20 to 2000 ppm.It make detection by method of cycle high and low temperature, and detect CO at low temperature.It is widely used in domestic CO gas leakage alarm, industrial CO gas alarm and portable CO gas detector.

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Air analyzer, Using almost all kinds of MQ sensors

“An air monitor that can measure CO, CO2, H2, CH4, NH3, Alcohol, Bangene, Acetone, Hexane, Toluene, Smoke and Flammable gas concentration. For a long time, I wanted to monitor every component in the air only using low-cost MQ sensors. So …

Low cost Carbon Monoxide meter

“Today Carbon Monoxide (CO) meters are available in different forms. Overall, Carbon Monoxide meters sense CO fast and display the amount to the user and trigger alarm if it reaches a critical level. Compare with most of the DIY Carbon …

Gas, Carbon Monoxide, Motion and Water Detection

“Detect gas, carbon monoxide, motion and water leaks with this multipurpose project. Story I am building this project to play with sensors I’ve never used before: MQ5 gas sensor MQ7 carbon monoxide sensor a PIR motion detector a water …

Presenting MQ sensors: low-cost gas and pollution detectors

“Let’s discover a set of low-cost gas and pollution detectors that may be easily accessed from the Arduino World. Detecting and measuring pollution and the main gases (the ones we may come across in our daily life) is always …

Home Monitoring System for Elderly Persons

“Hello friends, here we are with one more tutorial and that is home monitoring system for elderly persons. Now, we can not see and care our relatives all the time, so for that we can make one system in which …

Hazardous Gas Monitor

“Build a portable gas monitor to check for dangerous levels of hazardous gases in your home, community, or on the go and prevent your friends from lighting a cigarette during a gasoline fight. Please note that this is solely a …