Model name Smoke Alarm , Home,Office , Type Photoelectrical reflection detector , Connectivity technology Wireless , Test button Yes , Colour White , Light alarm Yes , Detection area 40 m² , Mounting type Surface-mounted , Maximum range 3 m , Alarm decibels 85 dB , Power source Battery , Battery type CR123A , Battery life 10 year(s) , Operating temperature (T-T) -10 - 55 °C , Operating relative humidity (H-H) 0 - 95 % , Weight 140 g