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With the Beha-amprobe PRM-5-EUR phase rotation tester, you quickly and reliably verify rotary field direction in 3-phase systems. This prevents motors and pumps from running in reverse and protects machinery from costly connection errors. Powered directly by the circuit under test, the instrument requires no batteries, ensuring it is always ready for commissioning or maintenance tasks. Bright led indicators instantly display the phase sequence and pinpoint missing or swapped phase lines. Operating across 100 to 700V with a rugged rubber housing and a cat IV 600V safety rating, it delivers safe testing in demanding environments. It comes complete with fixed test leads, three test probes, an alligator clip, and a carrying case.