Very usefull to measure current of pretty much everything that operates under 120VAC. Still unsure though about the 10x accuracy. Did some tests with different clamp meters and didn't quite get the 10x value when compared to the 1x. Perhaps the reading error is induced by the meter's range itself, the positionning of the clamp, or whatever else. For general troubleshooting purposes and reasonnable accuracy, it does the trick.
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