Three Phase Rotation Indicator is effective for measuring phase rotation in all areas where three phase supplies are used to feed motors, drives and electrical systems. The Phase Rotation Indicator is a rotary field indicator and can provide clear indication of the 3 phase via an LCD display and the phase rotation direction to determine correct connections. The Phase Rotation Indicator allows rapid determination of phase sequence and has a voltage [up to 700 V] and frequency range suitable for commercial and industrial applications. The Three Phase Rotation Indicator requires no battery.