$35 · First Alert Smoke and Carbon Monoxide Alarm

UPDATE - I have 1 of these left over from reno. Big box store would not take back as was over the 30 day limit. I am selling for $35. Brand new, never been opened. Hardwired photoelectric/CO combination alarm meets new construction requirements. Easy installation/maintenance - preferred features include a large opening in the mounting bracket for easy access to wiring. Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation. A battery pull tab keeps the battery fresh until the home is occupied. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the side load battery compartment. Two locking features are provided to prevent battery theft and/or theft of the unit. Connection to AC power is made with a quick-connect wiring harness. Installation is quick, easy and cost effective. 10Yr CO sensor/10yr end of life Single button test/silence Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm Optipath 360 TechnologyTM - patented technology provides 360 degrees of direct access to the smoke sensor Perfect mount - allows for easy alignment of alarm Latching features, alarm latch - remembers which unit initiated an alarm, low battery latch, visually identifies unit in low battery condition Dust cover End of life signal provides audible notification alarms needs to be replaced 10-Year limited warranty