Fluke-4596184-1664FC-Electrical-tester-stranded-bare-copper-class-5-strands-Fluke-4596184-p-Protects-devices-shares-results-wirelessly-and-performs-seven-test-steps-at-the-touch-of-a-button-The-Fluke-1664-FC-installation-tester-is-the-only-instrument-of-its-kind-with-insulation-pre-testing-If-the-tester-detects-that-a-device-is-connected-to-the-system-under-test-it-stops-the-insulation-test-to-help-prevent-accidental-damage-The-1664-FC-tester-also-has-Fluke-Connect-reg-so-you-ca