This is a Low-cost Night Lamp that beeps when it senses any gas leak. It can detect LPG vapors between 200 and 10,000 PPM and drive a piezoelectric buzzer to attract attention and take immediate action. The buzzer beeps until the concentration of gas in the airdrops to a safe level. The circuit USES an MQ6 gas sensor designed to detect LPG, propane, and isobutane gases.
