Petroleum use has a descending use while the natural gas obtains new users. Although gas is easy to use, environment friendly, cheap, clean, it has one disadvantage. A gas leakage in a closed room can be dangerous because there is a explode possibility. This circuit can protect you from leakage with an audible and visual signal every time one gas apparatus has a leakage problem. The sensor has made by an expert in gas Sensors Company the Japanese FIGARO. The well-known micro controller PIC12F675 that is responsible for reliable and safe operation becomes the whole control of the circuit. It can search LPG and natural gas. The circuit has it.s mains power supply and the required transformer.
Working voltage: 230V AC or 12V DC.
Consumption: 50mA (with buzzer sounding and the LED.s ON).