Audible Alarm Type Horn, Visual Indicator Type No Visual Indicator, Voltage 12 to 24V DC, Decibels 74 to 87dB, Sound Pattern Continuous/Pulse, Indoor/Outdoor Indoor, Mounting Wall, Height 4.5313 in, Width 2.7656 in, Depth 2.3906 in, Vibrating No, Housing Material Plastic, Operating Temp. 32 Degrees to 120 Degrees F, Standards UL, ULC, CSFM, FM, Amps 0.25 to 0.04, Color White, Watts 2 W, Horn