2-in-1 Smoke and Carbon Monoxide Detector CO Alarm Sensor High Sensitive Warning with LCD Display for Home Bedroom Office Hotel

Battery Included : No High-concerned chemical : None Is Smart Device : No Model Number : / With LCD Screen Or Not : Yes DIY Supplies : Woodworking Origin : Mainland China Smoke and Carbon Monoxide Detector : Smoke and CO Alarm 2 in 1 Fire Alarm Smoke Detector : Smoke Detector Gas Detector : Carbon Monoxide Detector