The MALLORY SONALERT part PK-27N26PSQ is a high-quality audio alert component designed for various applications. This 3VDC to 28VDC device consumes only 15mA at 12VDC while producing a loud 90dBA sound output in the frequency range of 2000Hz to 3000Hz. With a convenient pin through-hole installation, this SONALERT is easy to integrate into your project for effective auditory alerts and notifications.