Audible Alarm Type Bell Visual Indicator Type No Visual Indicator Voltage 12V DC Decibels 83 dB Sound Pattern Continuous Indoor/Outdoor Indoor Mounting Wall Height 7 in Width 6.3125 in Depth 5 in Diameter 6 in Vibrating Yes Housing Material Steel Rating NEMA 4 Standards UL Amps 0.52A Color Gray Bell Hazardous Class I II III Hazardous Division 1 2