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Last week, I delivered a review of the Keysight U1461 Insulation Resistance Test Multimeter. It's a lovely unit, and as with all new and wonderful tools, it's become my new "go to" unit when it comes to experiments. In my review, I commended it for the convenience feature of being able to detect an open fuse without actually taking it out and testing it by using the Earth Bond test selection as the manual said ... Had I been a little more awake this morning, I might not have had to use this f ...