Photo-Electric SMOKE/CO ALRM

Battery operated combination ionization smoke alarm and carbon monoxide alarm. Silence button temporarily quiets both alarms. Different horn sounds and separate alarm lights. Low battery signal; warning chirp and flashing LED. Permanent sensors last the life of the unit. Test button tests all functions. Loud 85dB alarm horn. 2 "AA" alkaline batteries included. 5 year limited warranty. Clamshell package. Vermont and Oregon approved.