Smart Wifi Wireless Thermostat Digital Temperature Controller B Thermostatic power supply voltage: 90V-240VAC 50/60HZ Temperature setting: 5-60 degrees, self-consumption power: Less than 1W. Precise temperature control: 3A Water Heating/Boiler has a built-in temperature sensor. Basic Functions: 1. Touch control 2. Intelligent timing 3. Intelligent child lock 4. Programming time period 5. Celsius degree ℃ / Fahrenheit degree ℉ conversion 6. Weather/humidity display 7. LCD color screen 8. Power failure memory 9. Auto off screen Brightness adjustable 10. Anti-freezing function 11. High temperature protection 12. One key to exit 13. Energy saving Load current:default 3A water heating/gas boiler linkage function, convenient for customer wiring) 3A water heating default with linkage function: one machine multi-purpose, universal single water heating / gas boiler / wall-hung boiler, no need to prepare a variety of functional products and lead to inventory backlog. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Type:3A-WIFI Colour:As Shown Material:ABS Package Contents: 1 * Digital Temperature Controller 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.