Linkstyle Smart WiFi Smoke Detector Alarm

This smart smoke alarm detects both smoke and abnormally high temperature, sending notifications to your phone via the Linkstyle app to warn you wherever you may be. Requires Smart Security Gateway Features Tamperproof: Anti-tampering alarm warns you of unintentional removal Early Detection: Pyramid labyrinth design improves sensitivity, enabling detection with fewer smoke particles to let you know before the smoke gets out of hand Red Dot Award-Winning Design: Sleek & Minimalist form factor is sure to complement your home décor Specifications td {white-space:pre-wrap;border:1px solid #dee0e3;} --> Power Supply DC 3V, CR123A battery Detection Range 50 square meters(~538 square feet) Operating Temperature -10°C~?55°C (14° F ~ 131°F) Operating Humidity ≦95%RH Communication Method Zigbee 3.0 Standby Time ~5 years Dimensions 70.5mm x 70.5mm x 29mm(2.78 in x 2.78 in 1.41 in)