Supply ceiling domestic piped natural gas leak alarms, gas leak alarms Product description: The patented gas sensor, no passivation, lower power consumption and longer life unique design, can sense gas, natural gas, liquefied petroleum gas MCU intelligent control, self-test, to prevent false positives and eliminate false negative, stable and reliable can be used alone, but also with the control system network. Sound, light alarm, NO / NC output, automatic reset installation flexibility: Wall / Ceiling energized within 1 minute alarm gas leak alarm technical parameters: Induction gas: gas, natural gas, liquefied petroleum gas Alarm concentration: gas: 0.1 to 0.5%; natural gas: 0.1% to 0.3%; LPG: 0.1 to 0.5% Operating Supply: 9 ~ 15VDC Working environment: Temperature: -10 ~ 50 ℃, relative humidity: ≤97% Response time: ≤20 seconds gas concentration extend Size: φ107mm × 50mm gas leak alarms Product description: The patented gas sensor, no passivation, lower power consumption and longer life unique design, can sense gas, natural gas, liquefied petroleum gas MCU intelligent control, self detect, prevent false positives and eliminate false negative, stable and reliable can be used alone, but also with the control system network. Sound, light alarm, NO / NC output, automatic reset installation flexibility: Wall / Ceiling energized within 1 minute alarm technical parameters: Induction gas: gas, natural gas, liquefied petroleum gas Alarm concentration: gas: 0.1 to 0.5%; Natural gas: 0.1% to 0.3%; LPG: 0.1 to 0.5% Operating Supply: 9 ~ 15VDC Working environment: Temperature: -10 ~ 50 ℃, relative humidity: ≤97% Response time: ≤20 seconds gas concentration and extended Size: φ107mm × 50mm