Smart WiFi Thermometer with Digital Display, Temperature Detector for Home, App Alert FunctionalityA

Built-in rechargeable battery: Can be powered by external DC5V power supply or standby battery. (Note: To power the detector via backup battery, open the back cover and switch on the detector.)<br> Temperature unit is optional (Celsius or Fahrenheit).<br> Check the history record of temperature anytime.<br> Multi-user supervision supported: You can share the device with other users.<br> Built-in buzzer: The buzzer will sound when the detector is triggered.<br> APP: Download the Tuya Smart or Smart Life app, compatible with Android and iOS smartphones.<br> Plug type: EU plug, suitable for use in Indonesia, Germany, France, Italy, and other regions.<br> Voltage: AC100-240V<br> Color: As shown<br> Material: Plastic<br> Package contents: 1 x Tuya WiFi Temperature Sensor<br> Only the above package content is included; other products are not included.<br> Note: Light reflection and different displays may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3 cm.