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, 3 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.