The Silent Call Signature Series Smoke Detector is a great addition to your home that can help keep you and your family safe, and protect your home and belongings, by alerting you in the event of a fire. If the smoke detector is activated, the built-in transmitter sends a wireless signal to any Signature Series receiver. (Receiver sold separately.) It's simple to install and battery powered, so there's no wiring to deal with. Ideal for the deaf and hard of hearing.
Provides 24 hour protection
Operates within a 2000 foot radius
Operates on (1) 3 volt Lithium battery (included)
Transmits through doors and walls
Provides instant notification
Combination 3- and 5-year warranty