Descriptions:  WiFi Thermostat for Electric Heater Water Radiant Floor Heating Alexa Google Home Enable Temperature Controlled.    OPERATION:  a. External & Internal Temp Check: Long press the' M'and' ',enter the checking mode, and press ' 'to select the address.      INSTALLATION:  Environment: Install to a 86*86 box, power by 220V AC.  Power off: Before you install, must cut off the power.     INSTALL STEPS:  1.Connect each wiring.  2.Connect the steel to the 86 box.  3.Buckle up the Power box and Panel.     ADVANCED SETTINGS:  When the thermostat is power on,long press the ' '(5s) , press ' M' select the setting item, and press ' ' to select .  1.Sensor Type:   00: Internal 01: External 02: Internal&External. Default is 00.  2 .High temp protection:     35~95℃, Default Is 95℃, '--' Cancel the Protection.  3.LowTemp Protection:0~10℃, Default is 5℃, '--' Cancel the Protection  4.Swing: 0-9 ℃, Default 2 ℃.  5.Temperature calibration ADJ : -9℃~+9℃, Default is 0℃.  6.Highest target temp:35~90℃, Default is 35℃.  7.Lowest target temp:0~30 ℃, Default is 5℃.  8.Home mode target temp:Default is 24℃.  9.Eco mode target temp: Default is 18℃.  10.Away mode target temp:Default is 15℃.  11.System restart:    Press ' ' to Switch the '--' to '==' and Wait for 5s.  12.Factory setting:    Press ' ' to switch the '--' to '==' and Wait for 5s     Package included:  1 x WiFi Thermostat.