Sorry for the necro thread, but chasing this with my NanoSD. Everything but WLL seems to be getting proper 0.01" rain tip amounts, but WLL seems to be getting metric (so WLL is low on all the readings). Doing conversion shows this is the case. =/
Everything looks right in Meteobridge. I cannot for the life of me see where you set the station units... I see "Unit Measurements" under my account on Weatherlink.com, but the station itself just shows model, which I have picked as "Vantage Vue, Wireless" rather than "Vantage Vue, Wireless, Metric" or "Vantage Vue, Wireless, OV" (whatever that is).
I've got an email into Davis, but haven't heard back yet. Not likely they're going to be able to help much. =/