Phase Sequence Tester

The phase sequence tester is used to check the direction of phase rotation in electric machine with three-phase supplies. It provides LED indication of both clockwise and anti-clockwise rotation. 
Phase sequence tester finds the continuity, or faulty condition, of all three lines and shows the sequence of phase rotation. It's a fast and effective method to ensures 3-phase outlets and devices are connected correctly.

The DE-721/DE-721B Phase Sequence Tester has three-phase system measurement ranges from AC 90V to AC 600 ; also magnetic base allows the instrument to be mounted on metal panel , easy to use.

DE-721 Phase Sequence Tester

Model : DE-721

DE-721B Phase Sequence Tester

Model : DE-721B