2IN1 Smoke and Carbon Monoxide Detector Combo - with Sound Warning and LCD Display Battery Powered (AA Battery Not Include)

Build-in electrochemical CO sensor and photoelectric smoke sensor that detects the larger particles of a smoldering fires. Instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms. Its provides the ultimate protection from two deadly threats and make your home decoration look more concise. Clearly indicates real-time carbon monoxide CO concentration in the surrounding air When the battery capacity is low the red light flashe time at every 10 seconds and the LCD display "Lb". Test Silence button enables you to test the alarm weekly and easily to silence the alarm when false alarms occur Alarm Volume Loud gt 85dBA. Loud 85-decibel alarm is designed to be heard easily. CO and smoke detector combo can easy to mount on any wall or ceiling with the included mounting bracket screws and anchor plugs No hardwired need. Used for bedroom living room and any other area with a risk of fire danger.