Power supplied DC9V battery and back-up source 
110V-240V AC mains power supply 
Supply voltage DC12 to 30 volts
Interconnect up to alarms

Gas Detected: Natural Gas/LPG/Coal Gas

Sensor:Japanese electrochemistry sensor                                     
Agent query function

Alarm record query function  
Smart voice alarm 
Alarm point settings
Usage time query                

Measure range:  0-50KPPM   (0-100%LE   )
Alarm point set : 5KPPM    (10%LEL)
Working environment: 0-60℃      ≤95%Rh 
Input power :  Ac220V  200MA
Static power: ≤1.2W
Alarm power: ≤3W
Response time:  ＜30 seconds
Alarm sound: ＞80 decibel (within 1m)
Gas sensor: service life for 5 years
Detector size: 131* 71* 43mm