MCU control Sensor with high stability Ceiling mounted Independence /network (optional) Low power consumption Induction gas:natural gas ,LPG Power supply:DC12V Alarm current: less than 150mA Standby current: less than 50mA Alarm volume: more than 70dB/m Alarm density:10%LEL Alarm density error:±5%LEL Operating temp.:0 to +55 degrees Working humidity: less than 95%RH Alarm mode: network singn / sound & flash alarm Operating Temperature:-10°C -- +55°C Dimensions 104mm(Dia)x51mm(H)