that looks perfect mate, might get one o those meself! £24, does all vag and fits in the glovebox.
And the oil pressure can only be checked by connecting a screw-in gauge designed to measure OP, and read off the results, or use the code reader if it can read the oil pressure sensor data, like vag com can. The problem with the gauge type is you would need somewhere to screw it into, like an existing tapped sensor hole near the oil filter, but there may not be a spare and the ecu will throw codes anyway if you unscrew the original to screw a gauge in there, tho you can clear the codes wi the reader.........but if it measures OP anyway I would just use that.