Weekly Programming Thermostat with LCD Screen, it is possible to set 6 perids called events each day with different temperature Also you can select " temperature control mode " or " manual mode " according to your requirments The thermostat is recommended for the control of electric heating devices or on/off valve actuator used in water-based heating system. Technical Data: Voltage: AC 230V 50-60Hz Power consumption: 2VA Setting range: 5 - 90 Celsius Limitation range: 5 - 99 Celsius ( factory setting : 35 Celsius) Accuracy of temperature measurements : 0.5 - 10Celsius adjustable, (factory setting: +/- 1Celsius) Ambient temperature: -5 - 50Celsius Protecting grade: IP20 colour:White Material:plastic size:86 x 86 x 12mm Package Contents: 1 x LCD Programmable Temperature Controller 1 x NTC sensor 2 x screw Only the above package content, other products are not included. Note: Light shooting 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. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.