The SCH628ANPR is a panel-mount audible alarm designed to produce a loud, fast pulse sound. It operates on a versatile voltage range of 6 to 28 VAC/DC and draws between 4 and 30 mA of current. This device generates a sound with a frequency of 2900 ± 500 Hz, achieving a typical loudness of 88 to 101 dB(A) at a distance of 2 feet. Housed in a durable black 6/6 Nylon case with NEMA 3R, 4X, 12 and IP-66 ratings, the alarm is suitable for harsh industrial environments and is approved for use in certain hazardous locations.