Industry Description
D2 Class audible signal can function as either a horn or siren by setting an internal, tamper proof switch. Low current, high performance, high decibel signal which may be coded or used as a continuous alarm.
Modified Industry Description
120V ELECTRONIC HORN/SIREN
AD Description
Edwards Signaling™ Duotronic® 5520-N5 Electronic High Decibel Horn and Siren, 120 VAC, 0.35 A, 114 dB Horn/112 dB Siren Sound, Surface Mount, UL 464, FM Approved, Gray
Vendor Description
Edwards D2 class devices are low-current, high performance high-decibel audible signals which may be coded from an external source or used as a continuous alarm. They are designed to function as either a horn or siren by setting an internal, tamper-proof switch. The 5520D is primarily intended for use in applications requiring electrical supervision of signaling circuit field wiring. These signals may also be used for unsupervised signaling applications.