The listing, 3 Kiddie combo Smoke and Carbon Monoxide detectors has ended.
3 Kiddie combo Smoke and Carbon Monoxide detectors wired. I bought these about 3 years ago in preparation to sell my home, but found out I needed photoelectric ones, which these are not. I used them for a few years with the battery only, but they seemed to go through batteries quickly if you do that. These are meant to be hardwired and the unused wire harnesses are included but not pictured. Kiddie model KN-COSM-IB, dated 11/11/2010.