TP5001RF + RX1-S V2, Batteries for thermostat + 230Vac for receiver, 5/2 Day Thermostat
087N7936
TP5001RF+RX1-S, Battery powered RF digital electronic programmable room thermostat and mains powered single channel RF receiver
There is a newer improved version of this product that Danfoss recommends that you investigate.
Replacement
Replacement