The MALLORY SONALERT part SC110NR is a versatile audio signaling device with a 30VDC/30VAC and 120VDC/120VAC input. It operates at 24mA and emits a high-quality sound output of 80dBA. With a frequency range of 2400Hz to 3400Hz, it delivers clear and audible signals. This SC110NR unit is designed for easy installation, featuring a screw panel mount for secure and convenient mounting. Perfect for a variety of applications where a reliable audio signal is essential.