The Yale Smoke Detector is a battery operated device, 9V battery included, which enables it to be easily installed (DIY) in any room without the hassles of running wires, calling an electrician or a handyman.
Tired of that boring ding-dong sound? Yale sure is! That is why we have introduced our own wireless door chime. It has 32 optional chime sounds to suite your personal preference and operates within a 100m distance.