Wheelock WH-127500 Nh Horn 12/24Vdc White - Wheelock WH-127500

The Wheelock NH Series horns have a choice of two tone patterns (continuous or temporal [Code 3] horn tones) and two sound output levels (high [95 dBA] or low [90 dBA]). The temporal (Code-3) horn pattern meets ANSI/NFPA/ISO requirements for standard emergency evacuation signaling. These two-wire horns feature low current draw on either 12 VDC or 24 VDC, filtered (FWR) or unfiltered. All inputs are polarized for compatibility with standard reverse polarity supervision of the circuit wiring by the control panel. The temporal patterns can be synchronized with an SM (single) or a DSM (dual) synchronization module or a compatible control panel. They have a universal mounting plate for easy wall mounting on a variety of back boxes.