Product features: 1. High precision. the sensor uses the best suppliers. can ensure the high accuracy of measurement data. 2. Real-time monitoring and recording. the sensor uses usb power supply. Compared to the battery version, the sensor will monitor temperature and humidity in real time. the IN sensor will inform when the temperature and humidity change very little. you can preview value changes in the app or on the display. record temperature and humidity changes in the app and use the graphs to show you. 3. LCD screen display The sensor uses LCD as temperature and humidity display, and the time and date display is added on the screen. the time and date are calibrated automatically. 4. Scene Link The sensor can be used as a source of temperature and humidity data from Tuya Smart, Smart Life, Amazon Alexa, Google Home. you can do many automated processes based on data source. 5. Temperature Unit Switch The sensor is designed with a Celsius and Fahrenheit temperature display conversion function. you can choose the unit that needs to be displayed according to your needs. 6. Third party voice support. The sensor supports Amazon Alexa, Google Home Assistant. you can check the current temperature and humidity by voice. product parameter: power supply: dc 5v/1a mocro usb wifi support: 2.4g ieee 802.11 b/g/n temperature measurement range: 0-60 temperature accuracy: 1 humidity measurement range : 0% RH ~ 99% RH Humidity Accuracy: 1% RH Reminder 1. This sensor does not have a built-in battery. it needs usb power all the time. 2. The time format cannot be changed. Currently, there are two versions, 12 hours (am-pm) 24 hours (EU standard) 3. Select the SKU in the time format you need Remote monitor When the sensor is registered in the app and connected to the internet, you can monitor the Real-time room temperature and humidity from anywhere in the world. LCD display display contents 1. temperature (/f switchable), humidity 2. time, date, day of the week. (adjust the time automatically) note: automatic time synchronization needs to be connected to the app, and the network is always available. Precise Measurement Note: 1. After setting, it will take 30 minutes to be accurate. 2. The sensor reacts quickly, and even small environmental changes will be monitored Work with Amazon Alexa, Google Home After connecting Amazon Alexa and Google Home, you can query the current temperature and humidity by voice. Real-Time Monitoring & Historical Data Graph 1. Compared with battery-based sensors, our sensors use USB power supply. he doesn't have to worry about energy saving strategies. when the temperature changes by 0.3 degrees or the humidity changes by 2%, the temperature and humidity will be reported to the service immediately. our sensors are truly real-time monitors. 2. Historical data will be displayed by graph. data is counted by day, month and year. Application Scenarios You can install the sensor wherever you need it (wifi connection network). Smart Call High-precision and real-time monitoring helps you complete different Call strategies. for example, if the temperature reaches 32.6 degrees celsius, turn on the air conditioner through our universal remote control. or Turn on the humidifier when the humidity is below a certain value. app pages real shot package include note: no power adapter included what is the difference between these products quality certificate.