I have a Vaisala AIR-HB-1a handheld barometer, and am searching for an owner's manual (scanned pdf would be great). Vaisala technical support could not provide a service manual--as the unit is out of support, but they did provide the attached sales brochure, which some of you barometer enthusiasts may find interesting.
While the AIR-HB-1a is not all that complicated to use, I would like to have a go at calibrating it. I have a calibrated DHI RPM-1 15A digital barometer than I can use as my reference, so I'm not completely in the dark.