KIDDE 10-Year Battery Worry-Free Talking Smoke & Carbon Monoxide Alarm Model P3010CUCA BRAND NEW in sealed package List price $69.29 plus tax https://www.kidde.com/fire-safety/en/ca/products/combination-smoke-co-alarms/p3010cuca/ I moved before I could install it and no longer need it. This is a 10-year, sealed battery, smoke and carbon monoxide alarm that features photoelectric and electrochemical sensing technology with a Hush® feature and a voice warning (English and French) to help identify the danger. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor, which is used to detect carbon monoxide. When either sensor notices a potential hazard, it communicates with the other. Depending on what is detected, the alarm adjusts its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarm's overall performance and significantly reduces the potential for a nuisance alarm. Multi-function One Button Design temporarily silences nuisance alarms for approximately 9 minutes and simultaneously tests the unit's electronics and verifies alarm operation. The alarm automatically activates when it is attached to the mounting bracket. At the end of alarm life the unit will chirp, indicating it is in need of replacement. No battery to replace for the life of the alarm. You can use a simple tool such as a screwdriver to deactivate the unit, stopping the chirp and making it safe for disposal. This smoke alarm uses photoelectric sensing technology. This may detect visible fire particles (associated with slow smouldering fires) sooner than ionization alarms which may detect invisible fire particles (associated with fast flaming fires) sooner than photoelectric alarms. Leading authorities recommend that both ionization and photoelectric smoke alarms be installed to help ensure maximum detection of the various types of fires that can occur. 10-Year Limited Warranty Dimensions (L x W x H): 2.5" x 14.5" x 11.75" Pick up safely near Oak Bay Beach Hotel. Call, text or email to arrange time. Ad REMOVED WHEN SOLD. Click on View seller's list under "Contact User" for my other items.