Eaton
Exceder LED Strobe
With the Exceder LED low frequency sounder strobes, organizations can now meet both sleeping room codes – NFPA 72 and NFPA 720 - with one device, which features two different sound patterns, T3 for fire detection and T4 for CO. The low frequency sounder strobes can replace a facility’s existing appliances, utilizing the same single pair of wires that are currently installed, offering a simple retrofit to meet new codes for sleeping rooms.
http://www.eaton.com/Eaton/ProductsServices/Electrical/index.htm