Which control panel is best for Eberspacher D5W S hydronic water heater to enable temperature regulation and 7-day timer functionality?

I have a D5W S hydronic eberspacher heater, but I would like to control the temperature better so the heater cuts in and out, when needs be. Also with a 7 day timer. Which control panel would I need

Hello. 
it is not typically recommended by Eberspacher to directly control their water heaters via referencing ambient room temperature. 
this is primarily due to the likelihood of short cycling of the heater which can cause early failure and/or high maintenance costs. 
the preferred method to control room temperature would be to have perhaps thermostatic valves in radiators, or controlling heater matrix blower motors via a room stat device. 
is this a possibility on your application?

thank you for your enquiry 

David