Graffiti Smoke Feeling WiFi Smart Home Black Smoke Alarm Detector

Product information:
Input Voltage:DC3V LR03
Static Current:≤ 15uA
Alarm Current:≤ 160mA
Low-voltage Notification:≤2.4VAlarm Sound
Level:80db/1 m
WiFi:802.11 b/g/n
Detecting Range:20 m'
Installation Method:Ceiling Mounted
Working Temperature:-10°C~+50°C
Working Humidity:≤ 95% RH