The MALLORY SONALERT part PB-12N23P-05Q is an audio indicator designed for various applications. This audio indicator operates at voltages of 4VDC, 7VDC, and 5VDC, with a current consumption of 30mA. It emits a loud 85dBA sound output at frequencies ranging from 1900Hz to 2700Hz. With its convenient pin through-hole design, this audio indicator can be easily installed and integrated into electronic devices and systems. Trust the MALLORY brand for reliable and high-quality audio indicators that deliver clear and audible signals.