The 2000B is characterized by having a manual two-tube input mechanism. Two tubes are placed in the tube holder and the operator then slides the holder into place to align the tubes with the test site trackwork. The 2000B retains the programmable eight-tube motorized output found on other Exatron handlers.

The 2000B is the easiest of the Exatron handlers to operate. Two tubes are mounted on the manual tube indexer and aligned with the test site trackwork manually. When the test result is returned, the part will be sorted into one of eight output tubes or bins.