Audible Alarm Type Horn, Visual Indicator Type Strobe, Voltage 12 to 24V DC, Decibels 68 to 96dB, 79 to 101dB, 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 Red, Includes Horn Alert, Horn Strobe