SITERWELL Wireless Interconnected Smoke Detector Carbon Monoxide Detector Combo with LCD Display; 2 in 1 Smoke and CO Detector with Test/Silence Button; Fire and CO Alarm with 3 AA Batteries; 1 Pack

UP TO 12 WIRELESS CONNECTIONS - This smoke and carbon monoxide detector can be wireless interconnected up to 12 PCS; with a single alarm having a detection range of up to 40 m². When one alarm is triggered; all alarms will sound and notify everyone of the emergency. 2-IN-1 PROTECTION - This combination smoke detector and carbon monoxide detector features dual sensors that detect both smoke and carbon monoxide hazards; providing an audible alarm in excess of 85 decibels. CLEAR LDC DISPLAY - The Smoke Detector Carbon Monoxide Detector Combo comes with a clear LCD display that allows you to easily view all of the alarm's status; such as power level; silence; type of alarm; and carbon monoxide concentration level etc. The screen will not display any values when the CO concentration is below 30PPM. REPLACEABLE BATTERIES - Package comes with 3 high quality AA batteries; battery life up to 7 years. The detector will still keep you safe when there is a power outage in your home. QUALITY ASSURANCE - Combination smoke and carbon monoxide detector have a sensor life of up to 10 years and utilize a reliable; high performance chip to provide you with robust protection. The product meets UL 217 and UL 2034 standards; We offer you a warranty of up to 3 years; giving you peace of mind.