Smoke and Carbon Monoxide Detector with LCD Display 2 in 1 Fire Alarm Smoke Detector Powered by Battery for Home Office RV Hotel

Battery Included : No High-concerned chemical : None Is Smart Device : No Measurement Range : / Model Number : Smoke and CO Alarm With LCD Screen Or Not : Yes Gas Type : CO DIY Supplies : Woodworking Brand Name : Shunmaii Origin : Mainland China Certification : CE,CE