Wireless gas leak sensor for GSM alarm

The sensor is used for timely notification of gas leaks (natural gas, propane). Used in conjunction with a GSM alarm system to notify a mobile phone in the event of a gas leak.   Characteristics: - The sensor has a built-in sensor that determines the gas concentration in the air; - It reacts to natural gas and propane; - At the maximum gas concentration in the air, the sensor will trigger and begin to emit a sound signal and transmit a radio signal to the main alarm panel; - Wireless signal frequency: 433 Mhz; - The sensor is wireless. Range: up to 100 m; - The sensor is installed on the wall. For propane you need to install the sensor below, and for natural gas under the ceiling, depending on the type of gas it is lighter or heavier than air; - Operating temperature: -10 ~ 50 C; - Siren volume: 85 db; - Voltage: 220 V; - Dimensions: 110 x 68 x 36 mm.