* Color: White * Sensor: Electrochemical CO sensor * Sensitivity/Alarm Time: o Within 60~90 minutes at 50ppm CO concentration; o Within 10~40 minutes at 100ppm CO concentration; o Within 3 minutes at 300ppm CO concentration * LCD Displayer (optional): 4 digits LCD displayer * Audibility: 85dB ( at 1m distance ), Frequency 3 - 0.5KHZ * Standby Current: <50?A * Alarm Current: <50mA * Standby Mode: Green Led flashes once every 30 seconds * Alarm Mode : Red Led quickly flashes 4 times with unit chirping every 5 seconds, then repeat, * Low-bat Indicator: Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD * Mal-function Indicator: Chirp every 30s with green LED out and Err on LCD * Power consumption: 0.3mW * Size: 10 x 4cm * Powered By: 3 x AA Batteries (Not included) package content: * 1 x Carbon Monoxide Alarm * 1 x English User Manual