gainexpress This reliable, handy & ergonomically designed economic tool has an intuitive operation, requires no expensive training. Because the cables are generic or standard you can find a pair of cables quickly. The function of speed regulating provides choice speed on testing.
Up for bid is a vintage 1962 EICO model 540 "Readi-Tester meter. There are no chips or cracks in the plastic housing and needle moves freely, however the working condition of this meter is unknown. Therefore it is being sold as is.
I googled the patent number and found the following info. The figures on the patent sketches looks slightly different than the piece. Patent number: US 3497806
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