Energy Saving Funtion:In manual mode, you can set the prec- target temperature according to the temperature you need. When the 1311Zdetects that the ambient temperature reaches the target temperature, the el-ectric heat stop working. In progra-mming mode, different temperatures a-re set at different times. Thusmore -elligent energy saving. Even after disconnection, the 1311Z thermostat can continue to execute comma- in program mode. For different temperature control, different rooms according to the actual temperature requirements reduce energy waste. Colour:White Material:plastic Package Contents: 1 x 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.