The MALLORY SONALERT part SC628ANR is an audio signaling device designed for both low voltage and high voltage applications. It operates at 6VDC/6VAC and 28VDC/28VAC with a maximum current consumption of 30mA. With a sound output of 80dBA, it provides a clear and audible signal in various environments. The frequency range of the alarm is between 2400Hz to 3400Hz, ensuring good audibility for a wide range of users. This device is equipped with screw panel mounting for easy installation and can be used in a variety of applications where audio signaling is required.