gas alarm which could detect natural gas,lng,lpg etc leakage to protect your life

gas alarm 

Features:
Gas alarm Auto reset after alarm
MCU process
Sensor with high stability
Low power consumption
Auto check and indication for malfunction
Detecting natural gas,LPG and LNG
SMT adopted

Tecnical Parameter:
Operating voltage: AC 220V
Standby current: less than 90mA
Alarm current: less than 100mA

Rated power: less than 3W (AC 220V)
Operating temp.: -10 to +50 degrees
Working humidity: less than 95%RH
Alarm mode: network output / sound & flash alarm / RF
Alarm volume: more than 85dB/m
Alarm density: 10%LEL
Alarm output: relay output (N.C.and N.O. optional) / RF signal
Transmitting Freq.: 315MHz or 433MHz(wireless type)
Sending distance: more than 200m( in the open area)
Dimension: 70L*40W*110Hmm