Color: White
Sensor: electrochemical co sensor
Display: LED blue backlight digital display
Standby Current:<50uA
Alarm Current:<50mA
Alarm tone: 85 decibels
Low power alarm: a "built" every 30 seconds is a clue
Operation Ambient Condition:5℃~40℃; 20%~90%R.H
Power supply: 2*1.5V AAA batteries (not included)
Package includes: 1x Carbon monoxide alarm 1 x User manual 2 x Screws CO Levels: 30-999PPM Err:Pls connect with us to replace LB: means lower battery,need to change new battery Green LED Light Indicates Alarm Is Operating Properly Red LED Light Indicates Dangerous The carbon monoxide alarm device for home, kitchen, bedroom, car, travel, etc.