•With LED digital display to show the concentration of CO/CH4 gas •Three-color indicator design,easy to be observed •Alarm sound ≥90 decibels within 3 meters,and flashing lights to inform nearby personnel of emergency countermeasures in time •360 degrees gas inlet,high sensitive detection,with accurate result Specification: •Operating Voltage: AC 90~240V •Static Current: 90mA •Alarm Current: 100mA •Rating Power: 3W •Warm-up Time: About 180S •Combustible gas alarm Level: 3500±1500PPM(7±3%LEL) •Carbon monoxide gas alarm Level: Above 100ppm,alarm within 3 minutes •Sound Level: ≥85dB/m(≤3m) •Installation Mode: Wall mounted •Response time: ≤10seconds •Recovery time: ≤30 seconds •Alarm Indicator: Human voice alarm,red LED flash and LED display(12 volt pulse voltage) •Operating Temperature: -10C~+55℃ •Environment Humidity: ≤95%RH (No condensation) •Size: 100*70*35mm Package included: •1 x Alarm Detector •2 x Screws •2 x Plastic Plugs •1 x English User Manual