Duotronic Horn & Siren w/ High dB, 12 VAC/VDC

D2 Class audible signals can function as either horns or sirens by setting an internal tamper-proof switch. Low-current, high-performance, and high-decibel, these signals may also be coded or used as continuous alarms. They offer easy Adaptaplate installation, too, and produce 124 dB audible signals at 1 m (114 dB @ 10'). Gray.