MQ-4

MQ4 gas sensors are used for detection of methane and natural gas. They have high sensitivity to methane and natural gas. They have a small sensitivity to alcohol and smoke.

Main Content

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 …

Breathalyzer Medallion

“We all have a special friend who needs supervision on a night out. Mine is called Geoffrey, and on his stag weekend it seemed prudent to have an outward display of how much of a liability he was likely to …

Breathalzer Medallion

“We all have a special friend who needs supervision on a night out. Mine is called Geoffrey, and on his stag weekend it seemed prudent to have an outward display of how much of a liability he was likely to …

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 …

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 …