TECHNO WPT OT is a digital weekly programmable thermostat, which uses the communication protocol OpenTherm. 
It combines the simplicity of programming with an energy savings, with 3 temperatures that can be set in time slots of 30 minutes.
Thanks to the large blue backlit LCD display it is possible view detected temperature, set temperature, time, active day of the week and operating mode:
Manual (Comfort-Eco) / Automatic / Antifreeze. 
The buttons for increasing / decreasing the parameters are always accessible.