Shop Our Products. Circuit Tester Store / Circuit Tester Refine by Sort by We recommend Newest arrivals Price: Low to High Price: High to Low Name: A to Z Name: Z to A Power Probe Lead Set, PPLS01 Power Probe Lead Set, PPLS01 $45.00 Power Probe II Automotive Circuit Tester Kit, PP219FTC Power Probe II Automotive Circuit Tester Kit, PP219FTC $75.00 Snap On Digital LCD Circuit Tester 6 & 12 Volt, EECT400 Snap On Digital LCD Circuit Tester 6 & 12 Volt, EECT400 $65.00 NEW Mac Tools 24/36V Circuit Tester, ET124D Mac Tools 24/36V Circuit Tester, ET124D $55.00 Snap On 12 V DC Digital Display Circuit Tester With Car Plug, EECT401 Snap On 12 V DC Digital Display Circuit Tester With Car Plug, EECT401 $65.00 Blue Point 7 Round Pin Tractor Trailer Light Circuit Tester, YA3179B Blue Point 7 Round Pin Tractor Trailer Light Circuit Tester, YA3179B $55.00 New Snap On 12 V Digital Display Circuit Tester with USB Plug, EECT402USB Snap On 12 V Digital Display Circuit Tester with USB Plug, EECT402USB $120.00 Cornwell 12/24 Volt System Relay Circuit Tester, HR76 Cornwell 12/24 Volt System Relay Circuit Tester, HR76 $120.00 Snap On Multi-Probe For 6-48 Volt Dc Systems, CT3000KT Snap On Multi-Probe For 6-48 Volt Dc Systems, CT3000KT $235.00 IPA 6-way Round Pin Trailer Circuit Tester, 7897 IPA 6-way Round Pin Trailer Circuit Tester, 7897 $15.00 Snap On Multi-Probe Ultra Digital Display Circuit Testers, EECT800 Snap On Multi-Probe Ultra Digital Display Circuit Testers, EECT800 $200.00