After update I cant find one of my thermometers


I’ve got a RFXCom usb transceiver plugged into my Raspberry Pi. It was working fine with my older installation of openHAB 2 (not entirely sure which version, but it was downloaded early 2016).
I used to get reading of a thermometer, but now with the latest released (through apt-get) version of openhab2 I cant get any readings.

In the old config I used to use:

Number Temp1	"Temp [%.1f °C]"		<temperature>	(Temperature)		{ rfxcom="<40705:Temperature" }

But in the new installation its not showing up.

Any ideas?

I’ve tried to define the thing in paper ui, but I dont really know which sub type it is.
Can I create a thing file for this to force it to pick it up? If so, what does it look like?

Also is there a way to log any unknown (or badly mapped) things?