Fluke-EI-1623-Slective-&-stakeless-clamp-set-Fluke-EI-1623-The-Selective-stakeless-clamp-set-is-used-along-with-the-Fluke-1623-to-perform-selective-&-stakeless-testing-Selective-testing-means-using-one-clamp-along-with-earth-ground-stakes-to-provide-earth-ground-loop-resistance-values-for-one-earth-ground-electrode-Stakeless-testing-uses-both-clamps-provided-to-perform-earth-ground-loop-resistance-measurement-without-stakes-Both-tests-have-the-advantage-of-providing-measurements-with-n