Greenlee GT-12A [TR-12A] Non-Contact Voltage Detector

The Greenlee TR-12A Voltage Detector is intended to check for the presence of AC voltage, signaling the user with an intermittent tone and flashing LED. The tone can be disabled using the Smart ON/OFF button. The TR-12A has a Self Test feature that continuously tests the integrity of the entire unit including the antenna. The TR-12A also features low battery indication and an auto power off feature.