Yep, pm Michael. He'll hook you up.
I have dozens of those hygrometers. They're the best I ever found. I calibrate them at 65% with Boveda bags and buy the batteries by the 100 pack at ebay (next batch will be from Amazon).
The shelf life on the batteries must be forever because the last time I ordered them I was married to my ex. That's gotta be at least 8-9 years ago. I think I'm real close to needing to order more.