3 Packs Smoke and Carbon Monoxide Detector Powered by Battery,Portable Smoke Detector Carbon Monoxide Detector Combo with Large LCD Display, Fire Alarm Smoke Detector for Home,Kitchen

Smoke and carbon monoxide detector adopts photoelectric sensor and electrochemical CO sensor design, dual sensitive sensors to detect smoke or CO independently. This fire alarm smoke detector is powered by 3 batteries, it has a low-battery alarm so that this smoke and carbon monoxide detector will keep its working state. A large LCD display provides you with a clear concentration on both smoke and CO, let you know the real-time smoke or CO level clearly. Once danger happens, this smoke detector will give out sound and LED flash at the same time, providing you a clear indication to leave.