Carbon Monoxide Detector, 10 Years Battery Alarm, CO Alarm with Test/Silence Button,Carbon Detector Comforms to EN 50291 Standard (2 Pcs)

【Accurate and Reliable】- This CO alarm is equipped with a 10-year sensor that can give a high and stable performance of accurate CO detection and ensures few false alarm. 【10-Year Battery Life】- The carbon monoxide detector comes with a replaceable battery of 10-year that will keep your home continous protection. No need for frequent battery changes. 【Effective Notification】- This CO detector is designed with three-colour LED indicators. The LED light flashed green, yellow, red to indicate power on, fault and alarm. 【Loud and Clear Alarm】- The CO detector features a high-volume buzzer with sound output of 85dB at 3 meters. So that you and your family would not miss any alert. 【Easy&Flexible Installation】- It can be easily mounted on the wall by attached self-adhesive sticker or screws. Also you can let it free-standing by your choice. 【Quality Assurance】- The carbon monoxide detector is tested and certificated by TUV laboratory and meets EN 50291 standard. 【Usage Scenario】- Carbon monoxide is a gas produced by insufficient combustion, so it is essential to install carbon monoxide detectors around barbecues, fireplaces, etc. 【Warning】- This product is not a natural gas detector, not a methane detector, it detects carbon monoxide and can only be used indoors.