This product was an upgrade to what we originally had installed back in 2003 in that it had a str...
April 08, 2020
Verified Purchase & Recommended Product
This product was an upgrade to what we originally had installed back in 2003 in that it had a strobe light which will help guide anyone down a flight of steps sleeping in an upstairs bedroom. Back when we installed the hardwired detector, strobe lights were not on household smoke detectors. This also has a voice sounding alarm with the words FIRE and an extremely piercing siren to awaken anyone from a sound sleep. The 10 year sealed battery is also a plus because we would sometimes to forget to replace the battery in our old smoke detector. This sealed lithium battery is charging when electric power is on and when power is off, this battery has a longer life cycle than the 9 volt battery in our old unit. Really is a definite upgrade over our old one. Glad the old one finally stopped working to see what we were missing after purchasing this Kidde Hardwired, LED Strobe smoke detector with 10 year battery backup