3 Pack Combination Photoelectric Smoke Alarm and Carbon Monoxide Detector Battery Operated with Digital Display (White)

2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other; every second counts; detects both fast and slow-burning firesand instantly notifies you when dangerous smoke or Co concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats,all contained in 1 unit.
LCD Display: Cleary indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working status of the alarm.
Test and Silence Button: Tests the unit for proper operation and resets the smoke and carbon monoxide alarm,Alarm Volume:Loud>100dB(A)at 1 meters. Loud 100-decibel alarm is desiqned to be heard easily. Please kindly press if false alarm.
Easy Install and Use: The alarm can easily install with mounting bracket No hardwired anymore. Very convenient to install at home or bedroom – wall mount, screws included.
Low battery signal alarm: Low battery signal alarm and “end of life warning ensures the detectors can work normal Environment friendly,without smell,radiation or harm.