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Product Description: Indoor & Outdoor WiFi Function Tuya Smart App LCD Digital Display Temperature And Humidity Sensor Built in high-precision digital display sensor can quickly and accurately detect temperature and humidity changes USB charging eliminates the need to buy batteries, saves energy and money. The sensor is equipped with a temperature probe (optional), which can accurately test the water temperature / aquarium and other humidity. It is widely used. The temperature and humidity on-line and off-line can be set, and the alarm will be given immediately when the temperature and humidity exceed. Product Parameters: Working voltage: DC 5V Static current: ≤30mA Wi-Fi: IEEE 802.11 b/g/n 2.4Ghz Humidity measurement range: 0~100%RH Temperature measurement range: -19°C ~ 60°C Accurate temperature measurement: ± 0.3℃ Humidity Measurement Accuracy: ± 2% Brightness measurement range: 0~100% Charging time: ≤ 2 hours Battery usage time: ≤ 4 hours (fully charged) Product size: 86*86*22.8 (unit: mm)