WIFI TEMPERATURE HUMIDITY MONITOR WITH DOUBLE ALARM:Connecting with 2.4GHz WiFi(No 5G support), you can remotely monitor the smart humidity sensor. You can set the upper/Lower limit of the alarm via Tuya/Smart life app. The wifi temperature sensor will sound an alarm and send a notification to your phone when beyond preset value REALTIME UPDATE & CALIBRATION FUNCTION:This remote temperature monitor is equipped with exceptional and a sensitivity sensor, support Real-time data update. Users can also choose the temperature or humidity report time, such as 1s or 100s.The digital thermometer for home with calibration function, the temp and humidity can be manually calibrated via the App VOICE CONTRO & BACKIGHT SCREEN:The temperature and humidity sensor compatible with Alexa, Google Assistant. After connecting, you can know the current temperature humidity by voice. Thermometer WiFi is equipped with a 2.9in Backlit LCD display, allows you to check the readings in any dim situation. You can also turn off the backlight manually. HOME AUTOMATION:The Indoor Humidity Meter and Temperature Sensor can be linked with other Tuya smart devices, such as , fans, etc.You can set a condition in the smart scene, for example, the air conditioners is turn on when the temperature reaches the limit value, or the dehumidifier in your room starts working once the humidity is over higher WITH EXTERNAL PROBE & BACKUP RECHARGEABLE BATTERY:The room temperature monitor with an external temperature sensor probe, you can use it to monitor the refrigerators, fish tanks, incubators, greenhouses, storage tanks, guitar cases, etc. It powered by USB cable and built-in rechargeable battery which used as a backup battery can be used for more than 5 hours after power failure. Powered by:DC5V 1A power adapter(included) Built-in rechargeable battery:3.7V 600mAH Battery standby time:about 6 hours in full charge Alarm Indication:The digital tube number flashes Detecting temperature:-40 to +120 (-100 to +170) Detecting Humidity:0% to 100% Temperature accuracy:0.5 Humidity accuracy:1%RH Measurement deviation:1 3%RH WIFI band:2.4G (not support 5G) Buzzer alarm time:default The product and app displays the current temperature and humidity value in real time. The detector would alarm and send notification to the user app when the temperature humidity goes above or the preset value Temperature humidity history queryable and could be exported to email APP support multiple devices, and multiple people could share one device Detection accuracy:1 3%RH Alarm volume:85db the sensor could not be put into water Temperature and humidity are accurate to decimal Device beep alarm sound With Waterproof External Probe Can be connected to an external temperature sensor Voltage:AC100-240V Plug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on. Colour:As Shown Material:PC+Metal Package Contents: 1 * Tuya WiFi Temperature Humidity Detector Alarm Sensor 1 * 1m Sensor Probe 1 * DC5V power adapter with USB Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.