The kit is composed of the instrument HD2101.1, 4 1.5V alkaline batteries, operating manual, case and DeltaLog9 software downloadable from Delta OHM website.
The kit is composed of the HD2101.2 datalogger, 4 1.5V alkaline batteries, operating manual, case, USB cable CP23 and DeltaLog9 software downloadable from Delta OHM website.