Audible Alarm Type Horn, Visual Indicator Type No Visual Indicator, Voltage 24V AC, Decibels 97 dB, Sound Pattern Continuous, Indoor/Outdoor Indoor, Outdoor, Mounting Wall, Height 4.875 in, Width 4.875 in, Depth 3.3125 in, Vibrating Yes, Housing Material Heavy Duty Die Cast, Rating NEMA 4X, Operating Temp. -13 Degrees to 104 Degrees F, Features Corrosion Resistant Heat Flowed Epoxy Finish, Standards UL Listed, Amps 0.625A, Color Gray, Horn, Hazardous Class I, II, III, Hazardous Division 1, 2