An Ohm meter is an instrument with which electrical resistance is measured. For that matter the colloquially often used term Ohmmeter is misleading because of the identically named unit ohmmeter. By Ohm is the unit of measurement known and not the physical size that is actually measured.

SPS electronic GmbH, a market leader in electrical safety testing since 1980, develops test systems as single device or product-specific solutions for implementation in the automation. Compact tester, multi tester, test systems with x-fold testing and surge tester and for example machine tester or high voltage test device of SPS electronic represent best quality from Germany.

Continuity test, earth bond test and insulation test are features which are included in the compact testers or multi testers of SPS electronic as are high voltage test (with test pistol), function test, line leakage test and impulse winding test.