Welltech Radio Weather Station


I was purchased a number of years back a Welltech Radio Weather Station.
I would like to intercept the data being sent to the indoor console and utilise this myself, rather than buying a whole raft of new sensors.
The data on the back of the console reads RX868-3V / 868.35 MHz.
Does anyone know if this is doable? And what I would need?

Thanks as always,

jB 8)