Mercury Photoelectric Smoke Detector with 10 Year Sealed Battery - Pack of 2 inverter_bundle Compatible sizes: 19" / 22"

Compatible sizes: 19" / 22" / 23" / 24" / 28"

which have performance equal to fluorite

spotlights & sirens

you can enjoy carefree photography

Mercury Photoelectric Smoke Detector with 10 Year Sealed Battery - Pack of 2 inverter_bundle Compatible sizes: 19" / 22"The Mercury Photoelectric Smoke Detector with 10 Year Sealed Battery is an easy to use photoelectric smoke alarm that needs no battery maintenance during its 10 year lifespan. Simply engage the internal battery by releasing the pin on the base of the unit, fix to your desired surface and test on a regular basis. Once the detector nears the end of its 10 year life, a low battery indication alerts you to replace the unit. This model also has a hush