Invensys' Firex 7000 combination smoke and carbon monoxide alarm combines a dual-ionization smoke alarm with a CO alarm that meets or exceeds UL/ULC standards for both residential fire and CO protection. Available in both battery-operated and 120V AC versions, the Firex 7000 can satisfy most residential fire and CO protection requirements. http://www.icca.invensys.com/firex/ DIRECT Info #408