There are few products that Carling Technologies hasn't turned "ON" and fewer industries that haven't turned to Carling for solutions. With ISO9001 and IATF 16949 registered manufacturing facilities and technical sales offices worldwide, Carling ranks among the world's largest manufacturers of circuit breakers, switches, power distribution units, digital switching systems and electronic control
The PS-723BQ is an audible signaling device that produces a sweeping tone with a resonant frequency between 2500 and 4500 Hz.