Audible Alarm Type Horn, Visual Indicator Type No Visual Indicator, Voltage 12 to 24V DC, Decibels 99 dB, Sound Pattern Continuous/Pulse, Indoor/Outdoor Indoor, Mounting Wall, Height 5.2344 in, Width 4.5 in, Depth 2.1875 in, Vibrating No, Housing Material Plastic, Operating Temp. 32 Degrees to 120 Degrees F, Standards UL, cUL, FM, CSFM, Amps 0.37, Color White, Horn