Remote Control: Connect the AT4PW Wi-Fi Temperature controller to 2.4GHz Wi-Fi, then you can monitor or adjust the temperature on your phone through the app at any time and anywhere. One Relay Same Output: Supports one equipment. Auto, ON, OFF Voltage: AC85-265V 50/60Hz Power: 12000W (120VAC), 22000W (220VAC). MAX Power: 26.5KW (265VAC) Humidity Display Range: 1 ~ 99% RH Temperature Measurement Range: -20 ~ 120°C Plug-and-Play: No complicated installation required Displays the set temperature value and the measured temperature value simultaneously on a 2.4-inch high-resolution screen Supports temperature calibration Supports Tuya and Smart Life app Supports °C or °F temperature unit setting switch Color: White Material: Plastic Package Contents: 1 x Digital Thermostat 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 to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.