Stupid simple question about boiler controls

[Palmtree]

hi, can anyone advise me please.
Gas engineer recently fit a new boiler, Drayton LP722 programmer and Danfoss Ret2001rf wireless thermostat at my daughters house.

I’m looking at buying the same replacement thermostat as shes broken it already.

They mostly seem to come with a receiver RX1-S which got me thinking that I can’t see a receiver currently fitted anywhere.

My question is - should there be a receiver or does the Drayton programmer already have a built in receiver?
Cheers

 

[ianmcd]

No it needs a receiver, will be next to the wiring centre, try where the HW Cylinder is

 

[Gasguru]

There should be a receiver somewhere.

 

[Palmtree]

That’s what I thought, many thanks for the replies.