Audible Alarm Type Horn, Visual Indicator Type No Visual Indicator, Voltage 120V AC, Decibels 64 to 88dB, Sound Pattern Continuous, Indoor/Outdoor Indoor, Outdoor, Mounting Surface, Height 4.5 in, Width 4.5 in, Depth 3.4375 in, Vibrating No, Housing Material ABS Plastic, Rating NEMA 3R, Operating Temp. -31 Degrees to 161 Degrees F, Standards UL, cUL, CSA, CSFM, Amps 0.04 AC, Color White, Signaling Device