Audible Alarm Type Bell Visual Indicator Type No Visual Indicator Voltage 120V AC Decibels 100dB @ 10 ft Sound Pattern Continuous Indoor/Outdoor Indoor Mounting Flush or Semi-Flush Walls Panels Surface Height 4 in Width 4 in Depth 2.5 in Vibrating Yes Housing Material Die Cast Zinc Rating NEMA 4X/12 Operating Temp -65 Degrees to 150 Degrees F Standards UL E4813 CSA 00583X FM Amps 0.18 AC Color Gray Vibratone Horn