The SC628APR is a panel-mounted piezoelectric audible alarm designed for medium-level sound applications requiring fast pulse operation. It operates across a wide voltage range of 6 to 28 Vac/dc, generating a 2900 Hz ±500 Hz tone with a minimum loudness of 68 dB(A) at 6 Vac/dc and a maximum of 80 dB(A) at 28 Vac/dc, both measured at 2 feet. The device features a pulse rate ranging from 2 pulses per second at 10 Vac/dc to 10 pulses per second at 48 Vac/dc, with an approximate 50% duty cycle and current draw of 4 mA maximum at 6 Vac/dc and 16 mA maximum at 28 Vac/dc. Housed in black 6/6 nylon with a typical weight of 2.7 oz (76 g), the SC628APR is suitable for alarm, notification, and alert applications in industrial control systems, medical equipment, and consumer appliances requiring reliable audible feedback across varying supply voltages and environmental conditions.