Audible Indicators: Type - Single Tone Signal; Mode of Operation - Fast Pulse; Sound Level Category - Loud Sound Level; Voltage - 30-120 VAC/DC; Mounting Type - Screw Neck Panel Mount; Loudness - 80-95 dB @ 2 Ft; Pulse Rate - 2-10 pps; Current - 6-24 mA; Frequency - 2900 Hz; Material - 6/6 Nylon; Color - Black; Temperature Rating - -30 to 65 deg C; Terminal Type - Screw Terminals; Terminal Size - #6-32 Screw 0.25x0.32"Tab (1/4"QC); Size - 1.69"Dia. x 1.31"Length (42.9x33.3mm); Mounting Size - 1.25" Dia. Panel Cutout; Manufacturer Series - Sonalert