Extech PRT200 Phase Rotation Tester<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>75 to 1000VAC input voltage</li><li>45 to 65Hz frequency range</li><li>LEDs indicate phase orientation (clockwise or counter-clockwise) and whether each phase is live</li><li>Fully insulated alligator clips with wide jaws</li><li>Durable housing with back cover magnet for attachment to an AC distribution panel for easy measurement</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41880DC1cTL.jpg" noproxy>