Portable contact-resistance testing
RMO-A Series
A practical starting point for high-current contact-resistance measurements on circuit breakers, switchgear, disconnectors, busbars and other non-inductive connections.
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DV Power low-resistance testing · Canada
Choose a DV Power micro-ohmmeter by asset, required test current, portability and grounding method—from handheld field checks to high-current circuit-breaker testing.

The best instrument depends on the current required by your procedure, whether both sides must remain grounded, how portable the setup must be and what equipment is being tested.
Portable contact-resistance testing
A practical starting point for high-current contact-resistance measurements on circuit breakers, switchgear, disconnectors, busbars and other non-inductive connections.
View RMO-A →
Continuous-current capability
Choose RMO-C when the procedure requires increased output capability and continuous DC current during static resistance measurement.
View RMO-C →
Both Sides Grounded testing
Select RMO-G for high-current contact-resistance testing where Both Sides Grounded and remote-control functions are required by the work method.
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Battery-powered field testing
A handheld option for regulated low-resistance testing when portability, quick field setup and battery operation are important.
View RMO-H → Check RMO-H Rental Option →Use specialized solutions when the main task is substation ground-grid continuity, protective-earth bonding or long-distance low-resistance measurement.
RMO-E RMO-EH GGT RMO10HChoose a winding-resistance platform rather than a general contact-resistance tester when the test object is inductive.
RMO-M RMO-GM RMO-THSend RCCE the asset type, required test current, expected resistance range, grounding arrangement, desired portability, test-lead length and applicable test procedure.
Final model suitability, rental availability, accessories, pricing and service scope must be confirmed by RCC Electronics.