The Model 3154 Digital m-Ohm HiTester provides six selectable test voltages: 25, 50, 100, 250, 500 and 1000 V, in order to support a wide variety of tests to evaluate electrical and electronic components and equipment. Comparator and timer functions facilitate easy insulation resistance testing in accordance with various safety standards, and a complete external I/O interface is provided for efficient automated line testing.

Any of six measurement voltages can be selected for use in a wide range of applications, from electrical and electronic component testing to electrical and electronic equipment. The comparator can be set up for use with each measurement voltage.

The unit discharges any charge buildup on the measured object as a result of electrical loading. This electrical discharge function prevents the effects of one test from being carried over to a subsequent procedure.