The G4LFWN-HVM meets the 520Hz low-frequency audible requirement NFPA 72 calls for in sleeping areas, pairing it with a field-selectable strobe up to 110 cd for occupants who need visual notification too.
Built for the commercial fire installer
The 520Hz tone penetrates walls and doors far better than a standard high-frequency horn, reaching up to 83 dBA with selectable high/low output and coded or temporal patterns. The strobe offers four field-selectable candela settings (15/30/75/110 cd) changed by removing the cover and sliding a switch - no separate model needed per candela rating, and the setting stays visible through a window after the cover is closed. The universal room-side wiring plate lets an installer pre-wire and check continuity before the device ever snaps into place.
Key features
- 520Hz low-frequency tone meets NFPA 72 sleeping-area requirements
- Field-selectable strobe output: 15, 30, 75, or 110 cd
- Selectable horn output: high/low dBA, coded or temporal pattern
- Unmarked cover for applications where a FIRE marking isn't required
- Genesis-compatible synchronization - mixes with legacy Xenon strobes on the same circuit
System requirements
Fits 1-gang, 2-gang, 4-inch square, or 4-inch octagon (with GOCT adapter) electrical boxes, at least 1-1/2 in. deep. Strobe synchronization requires a compatible source (CC1S/MCC1S Series Signal Modules, booster/auxiliary power supplies, or intelligent/conventional control panels).
Why 520Hz instead of a standard horn tone?
Can I change the strobe candela after installation?
Does this include the mounting plate?
Can I add a FIRE marking later?
Spec Sheet
