BHT-005 is suitable for electric heating / water heating / wall-hung boilers and boiler-temperature control systems.It can be used in smart controlling hourses, shopping malls, and industrial places. Thermostat APP:For IOS devices, search for smart life in Store and download. For Android devices, search for smart life in Play and download. Techincal Data: Power Supply: 95 - 240 VAC, 50 -60HZ Screen: LCD Negative display Accuracy: 0.5 C or 1 F Set Temp. Range: 5-35 Display Temp. Range: 5 -99 Storage Temp.: -5 - 45 Protection Class: IP 20 Buttons: Capactive Touch Buttons Current Load: BHT-005-GCLW:5A for Boiler Heating(wifi) Colour:White Material:PC+ABS Package Contents: 1 * 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.