The SC648AN is a panel-mount audible alarm designed to generate a continuous tone. It operates across a wide voltage range from 10 to 48 VAC/DC, producing a sound level that ranges from 80 dB(A) at 10V to 95 dB(A) at 48V, measured from 2 feet. This device has a resonant frequency of 2900 Hz ±500 Hz and features a current draw of 4 mA at minimum voltage and 26 mA at maximum voltage. Housed in a black 6/6 nylon case and UL Recognized, this alarm is ideal for applications requiring a robust and reliable audible signal.