The Hioki 3560 contact resistance meter complete with comparator function and external interface utilizes the principles of the AC 4-terminal method that gives priority to line use and allows measurement offering high speed, high accuracy and high resolution. External output terminal, external control terminal and RS-232C interface are standard features. GP-IB interface and printer interface are optionally available. The instrument also features an m-Ohm and V mode that allows simultaneous measurement and comparison of battery internal resistance and open-circuit voltage. This HiTester is highly suitable for battery inspection lines as one unit can act as both a low-resistance meter and DMM.