Features:
Portable and compact.
Easy installation no need to debug.
LCD Display with a blue ground Light.
Loud 85 decibel alarm with LED Flash While in the Alarm Mode.
Precise electro-optical sensor high consistency and stability.

Specifications
Sensitivity & Time
30ppm Alarms within 120 Minutes
50ppm Alarms within 60~90 Minutes
100ppm Alarm within 10~40 Minutes
300ppm Alarms within 3 Minutes
Standby Current
<50uA
Alarm Current
<75mA
Power Supply
3 * AA Batteries (Not Include)
Operation Ambient Condition
5~40 Degree 20~90%R.H.
Color
White
Product Weight
88g / 3.1oz
Package Size
10.5*10.5*4cm / 4.2*4.2*1.6in
Gross Weight
120g / 4.23oz

Package Included:
1 * Carbon Monoxide Alarm
2 * Screws
1 * User Manual