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The Tuya temperature sensor connects to 2.4 GHz WiFi (does not support 5G). You can switch the temperature unit between /, preset the alarm value, and receive notifications through the app. The user-friendly app includes a dynamic temperature and humidity chart, and you can access current as well as historical data via the app.
Specifications:
(1) Host unit:
Communication range of the host (between master and sub-devices): 150 m (open)
Operating temperature: -20-60
Operating humidity: 0-99% RH
Accuracy: ±0.5, ±5% RH
Maximum number of connected sub-devices: 9
Power supply: USB-DC 5V / 1 A
Wireless protocol: WiFi, Bluetooth, 433 MHz RF
Size: 60*60*20 mm
(2) Sub-device:
Operating temperature: -20-60
Operating humidity: 0-99% RH
Accuracy: ±0.5, ±5% RH
Wireless protocol: 433 MHz RF
Power supply: AAA*2/3V
Size: 71*25*20 mm