Shelly Plus Smoke Alarm package size::3-Pack Package contains a combined 63

Package contains a combined 63 A single-phase and three-phase current transformer

or your preferred automation system

double and triple frames

switching current:

Shelly Plus Smoke Alarm package size::3-Pack Package contains a combined 63Smart 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 Specifications: Physical Size (HxWxD):