The MALLORY SONALERT part SC628DP is a highly efficient audio device perfect for use in various applications. Operating at voltage range of 6VDC to 28VDC and drawing only 23mA of current, this device ensures minimal power consumption without compromising performance. With a sound output of 60dBA, it delivers a clear and audible alert signal, making it suitable for both indoor and outdoor use. The frequency range of 1600Hz to 2200Hz ensures attention-grabbing tones that can be easily distinguished in noisy environments. Designed for convenient installation, this model features a screw panel mount for secure attachment.