Audible Alarm Type Horn, Visual Indicator Type No Visual Indicator, Voltage 24V DC, Decibels 101 dB, Sound Pattern Continuous, Indoor/Outdoor Indoor, Mounting Surface, Height 4.625 in, Width 4.625 in, Depth 1.875 in, Vibrating Yes, Housing Material Heavy Duty Die Cast, Rating NEMA 4X, Features Completely Assembled, Corrosion Resistant Finish, Standards UL Listed, Amps 0.16, Color Gray, Includes Adaptaplate, Vibrating Horn