Audible Alarm Type Buzzer, Visual Indicator Type No Visual Indicator, Voltage 24V AC, Decibels 70 dB, Sound Pattern Continuous, Indoor/Outdoor Indoor, Mounting Surface, Height 2.3438 in, Width 5.1094 in, Depth 2.25 in, Diameter 5.0625 in, Vibrating Yes, Housing Material Steel, Standards UL, Amps 0.250A, Color Gray, Buzzer