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 | Extech phase and motor rotation testers are tools used to determine the direction of a three-phase power source and to ensure a motor is wired correctly to run in the intended direction, preventing damage. They do this by testing the phase orientation (clockwise or counter-clockwise) of the power source and also by indicating the rotation direction of a running motor using a non-contact method. The testers use LED indicators and are designed for industrial use. |
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