Audible Alarm Type Horn Visual Indicator Type No Visual Indicator Voltage 24V DC Decibels 97 dB Sound Pattern Continuous Indoor/Outdoor Indoor Outdoor Mounting Wall/Pipe Height 7.625 in Width 7.375 in Depth 4.1875 in Vibrating Yes Housing Material Heavy Duty Die Cast Rating NEMA 4X Operating Temp -13 Degrees to 104 Degrees F Standards UL Amps 0.16 Color Gray Hazardous Location Vibrating Horn Hazardous Class I II III Hazardous Division 1 2