①. Weekly Programming Thermostat with LCD Screen, it is possible to set 6 periods called events each day with different temperature. ②. Also you can select "temperature control mode" or "manual mode" according to your requirements. ③. The thermostat is recommended for the control of electric heating devices or on/off valve actuator used in water-based heating system. ④. Technical Data: ⑤. Voltage: AC 230V 50-60Hz ⑥. Power consumption: 2VA ⑦. Setting range: 5 - 90 Celsius ⑧. Limitation range: 5 - 99 Celsius (factory setting: 35 Celsius) ⑨. Accuracy of temperature measurements: 0.5 - 10 Celsius adjustable, (factory setting: +/- 1 Celsius) ⑩. Ambient temperature: -5 - 50 Celsius ⑪. Protecting grade: IP20 ⑫. colour: White ⑬. Material: plastic ⑭. size: 86 x 86 x 12mm ⑮. Package Contents: ⑯. 1 x LCD Programmable Temperature Controller ⑰. 1 x NTC sensor ⑱. 2 x screw ⑲. Only the above package content, other products are not included. ⑳. Note: Light 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.