1 - VC 840 Recorder 1.0 VC 840 Recorder can receive and record data from the digital multimeters sold under the name "Voltcraft VC 820" and "VC 840" by Conrad in Europe, and possibly others manufactured by Uni-Trend (the VC 820/840 seem to be custom models from the UT60 series). License: GNU Public License OS: Mac OS X 10.1 Size: 470 KB