Extech DV30 Non-Contact Adjustable AC Voltage Detector

Sensitivity adjusts to pinpoint voltage source Non-contact detection of AC voltage from 12VAC to 600VAC Sensitivity adjustment increases or reduces sensor trigger threshold Audible and visible voltage indication Self test function Small size with pocket clip Dimensions: 6.1 x 1.1 x 1" (155 x 28 x 25mm); Weight: 1.5 oz (42g) What's Included: pocket clip and two LR44 button batteries.