Detector boldly goes where no wires have gone before
Low-profile, photoelectric Wireless Smoke Detector WS4916 installs wherever running a wire to a smoke detector is difficult or not possible. Features built-in alarm horn, integral dual-sensor heat detection, automatic drift compensation, and a low-maintenance, replaceable chamber. Powered by long-life lithium batteries. U.L./U.L.C./E.N.-listed and compatible with all D.S.C. wireless security receivers.