The Phase Rotation Meter Model 6610 is an essential tool for any installation, inspection and maintenance facility. The Model 6610 is a phase meter with voltage sensing detector clips (no metal contact points) designed to identify phase rotation on 3-phase systems and identify live and open/de-energized phases. The phase order is determined as soon as the leads are connected. The presence of live wires and phase sequence are provided by LED indication and buzzer as soon as detection has occurred. The Model 6610 is ideal for installing rotating machinery or motors, and for checking generator phase rotation direction.