TUYA wireless photoelectric smoke detector Wi-Fi

TUYA wireless photoelectric smoke detector, Wi-Fi
Features:
Smart wireless smoke detector with photoelectric sensor that detects smoke from any direction early. Triggers an optical and audible signal, and sends alert messages via Wi-Fi via the TUYA app.
The smoke detector is connected and configured directly through the Tuya Smart or Smart Life smart app.
No additional control panels or devices are required, all you need is 2.4GHz wireless internet and a smart Android or iOS device.
Very convenient and easy to use! Light and small, with low energy consumption.
It is recommended to mount the detector on the ceiling in the middle of the room for more effective smoke detection, 30cm away from light fixtures and > 15cm away from walls and corners. It can be mounted on a sloping attic ceiling surface, 90cm away from the highest point of the ceiling.
Requires two AAA batteries (not included). It is recommended to mount the smoke detector up to 10 meters from the Wi-Fi router.
Technical data:
Power supply: DC 3V - 2x AAA 1.5V (batteries not included).
App: TuyaSmart (Android, iOS).
Audible alarm: > 80dB/1m.
Flashing alarm: red LED.
Alarm current: <160mA.
Standby current: <15mA.
Wi-Fi network protocol: 802.11 b/g/n.
Operating temperature: -10°C~+50°C, at 0%~95% RH.
Detection area: 20 sq. meters.
Low battery signal: <2.4V.
Dimensions: 80mm x 38mm.
Weight: 73g.
Installation: to the ceiling / sloping attic ceiling, with screws or 3M adhesive tape.
The package includes:
Smoke detector.
Set of mounting screws.
3M adhesive tape.
Warranty: 24 months