Eaton has developed the Wheelock Eluxa low frequency sounders (ELFHN) and sounder strobes (ELFHS) to meet the National Fire Protection Association (NFPA 72) low frequency sounder requirements for sleeping rooms for both fire alarm and carbon monoxide (CO) signaling. In a single device, the Eluxa low frequency sounders features both low and high candela settings and alarm signals for dual applications - T3 (fire) and T4 (CO) tones.With the industry’s smallest footprint, the Eluxa low frequency sounders and sounder strobes are aesthetically pleasing as the low profile design does not detract from the interior decor. Eluxa is feature rich with low and high candela settings and 3 horn patterns (Continuous, T3, T3/T4) in 1 device, pre-wire/pre-test via mounting plate with hinged feature for ease-of-installation, and no tools needed for setting changes. These products are suitable for indoor wall and ceiling mount applications. The ELFHS and ELFHN models are for 24V operation. Special lettering, ALERT, CO, and no lettering, is available.