I was wondering on buying a DE-EE-DE5000 but I was hearing of Reversed Battery Protection, input protection, problems, with dying units, ie: eevblog.com/forum/testgear/de-ee-de-5000-unboxing-and-teardown. PedroDaGr8 had found a possible battery protection, D5, R5, R4 with the D5 being a inline diode/fuse. I have heard of DE-EE-DE5000 customers having blowing up their meters instantly with a reversed battery. Most of these low cost meters don't have input protection either, unless you go to Agilent U1733C with older discrete chipsets, with better input protection, MOVs, diodes, resettable fuses, at a twice to three times the costs. With B&K meters don't have 100Khz, ESR frequency. I may by the Blue Bob Parker meter instead and use my Heathkit IT-11 and older LC meters for now. I have heard of people having their DE-EE-DE5000 dying after a year of use, getting what you pay for, China junk.
What do other guys think. Later Ray.B