Shop Our Products. Power Probe Store / Power Probe Refine by Sort by We recommend Newest arrivals Price: Low to High Price: High to Low Name: A to Z Name: Z to A New Power Probe IV Diagnostic Circuit Tester, Power Probe 4 New Power Probe IV Diagnostic Circuit Tester, Power Probe 4 $220.00 New Power Probe III Circuit Tester New Power Probe III Circuit Tester $130.00 Power Probe III Circuit Tester, PP219FTC Power Probe III Circuit Tester, PP219FTC $90.00