Shelly Plus Smoke Alarm - Plug & Play

Smart Wi-Fi Smoke Alarm Shelly Plus Smoke Alarm is a smart photoelectric smoke alarm, which is effective at detecting slow fires that smoulder for hours before bursting into flame. Receive instant notifications on your phone and create safety scenes to keep your family and home safe. - Battery operated - 1x CR123A battery - LED indications and loud alarm; Alarm pause (Hush mode) - Low battery warning - Easy installation