Audible Alarm Type Fire Alarm, Visual Indicator Type No Visual Indicator, Voltage 24V DC, Decibels 94 dB, Sound Pattern Continuous/Pulse, Indoor/Outdoor Indoor, Mounting Wall, Height 6 in, Width 4.5 in, Depth 4.5 in, Vibrating No, Housing Material Steel, Operating Temp. 32 Degrees to 120 Degrees F, Standards UL, FM, CSFM, Color White, Watts 0.13 W, 8 W, Speaker