【Temperature Measurement】DS18B20 waterproof temperature sensor can help you measure water temperature. Set a temperature range in the app, when the temperature reaches the preset range, the TH Elite switch connected to WiFi can turn on and off automatically. 【16A Max. and Dry Contact Output】Supports connecting a 16A Max. high voltage switch load, dry contact output. 【Temperature/Humidity History Query】In addition to displaying real-time temperature on the LCD screen. It also supports displaying historical "temperature/humidity data" by hour, day and month. Historical data of the past 6 months can be exported to .xlsx format with hourly accuracy. 【Local Automatic Control】Supports LAN control, automatic control is more reliable. You can set 8 automatic control programs to save electricity costs and create a comfortable environment. 【Voice control and query】TH Elite WiFi Switch is compatible with Alexa, Google Assistant, you can query the temperature and humidity values through your