Helps prevent damage to equipment when connecting a motor or drive to an electrical device or a 3-phase power supply * Indicates 3-phase sequence or open phase, as well as motor phase rotation and direction of motor shaft rotation * Comes with three color-coded test leads and two sets of alligator clips for hands-free connection to a 3-phase power source * Comes with a soft, zippered vinyl carrying case * Meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category III up to 600V