Technical Specification * Induced Gas：Coal Gas\Natural Gas\LPG * Power Input： Household Power Supply AC 220V /50Hz or DC 12V * Working Environment： Temp.： -10°C ~+40°C； Relative Humidity： ≤90%RH * Buzzer Level:≥70dB/m * Alarm Density：15%LEL * Resume Density：8%LEL * Stability：Long-time Working Alarm Density Error≤± 5 % * Repetitiveness： Repetition Test Alarm Density Error≤± 5% * Alarm Density Error ：≤± 5%LEL * Alarm Mode： Flash＆Sound Alarm, Shut-off Gas Valve/Network Alarm Signal * Power Consumption：≤5W