What's in the box:

Carbon Monoxide Detector Alarm LCD Display Peak Memory 9V Battery Operated Not Hardwired CO Detector Alarms Sensor (Standard)

Keep your family safe with this battery powered carbon monoxide alarm.

Features:
LCD display with blue backlight, with memory feature to indicate the peak alarm level.
Green LED for indicating proper operation, red LED for danger perceived and the alarm pattern will sound.
Quick respond and alarm with loud sound output of 85dB at 3 meters when danger detected.
Test/ reset button to test unit' s electronic circuitry & horn and reset the unit during alarm.
1 * 9V 6F22 battery(NOT INCLUDED) operated for convenience, low power indication, flame-retardant ABS material.
It can be quickly installed in your home without requiring an electrician, no wire needed, not hardwired.
Sleek profile with glossy white, easy to integrate with home, office, hotel, school, factory, etc..

Specifications:
Material: ABS
Static Current: <50uA> Alarm Current: <75mA> Working Temperature: 5-40?
Working Humidity: 20-90%RH
Power Supply: 1 * 9V 6F22 Battery (NOT INCLUDED)
Alarm Concentration:
30ppm: alarm after 2 hrs
50ppm: alarm within 60-90 mins
100ppm: alarm within 10-40 mins
300ppm: alarm within 3 mins
Alarm Sound: 85dB/ 3m
Item Size: 11.5 * 3.7cm / 4.53 * 1.46in
Item Weight: 103g / 3.63oz
Package Size: 12.0 * 12.0 * 4.0cm / 4.72 * 4.72 * 1.57in
Package Weight: 140g / 4.92oz

Package List:
1 * Detector
2 * Screws
2 * Plastic Insert
1 * Manual