on calibration: both meters have small calibration screws on the back. The voltmeter was very close out of the box (within .1V). I checked it against my Fluke DVM. The thermometer was off a couple of degrees compared to a Talyor digital thermometer I have laying around. I got it closer with the adjustment screw but not perfect. I think it is now within 1 degree or so.
Present: Blue DL1000
Past Street: Yam 1984 RZ350 Kenny Roberts
Suzuki 1984 GS450E
Kaw 550 LTD
Past Dirt: 1984 KDX200