gas leak alarm

Relevant key device information applied in this article: CD4011 9013 gas sensor can be used to form a gas leak radio remote control alarm. When the gas leak exceeds the set safety standard concentration, the gas sensor outputs a detection signal, which is amplified and processed Turn on the radio transmitting circuit to send out an alarm signal. As shown in the figure is a gas leak radio remote control alarm composed of a gas sensor QM-N10. When the gas leak exceeds the specified standard, the relay K is closed and the working power of the radio transmitting circuit is turned on. The transmitting circuit of this alarm is not shown in the figure. It can use any radio transmitting circuit.