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 anywhere. One Relay Same Output:Support 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-n-Play:No complicated installation required. Display the set temperature value and the measured temperature value at the same time with 2.4inch high screens. Support Temperature calibration: Support Tuya and smart life app Support °C or °F temperature unit setting switch Colour: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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.