This phase rotation meter PCE-PI1 has a robust housing with a large LCD display so you can easily and conveniently determine the phase and motor rotation direction. Furthermore, any problems in individual phases are shown on the display of the phase rotation meter. The phase rotation meter meets the safety standard CAT III 600 V, IEC-61010. The phase rotation meter is ideal for determining the phase rotation in all areas where three-phase power supplies are used to feed motors, drives and electrical systems. The phase rotation meter has a voltage range of up to 690 VAC. Use of the phase rotation meter will help prevent damage to engines and equipment that may arise due to incorrect direction of rotation.