Vintage (or old if you prefer) Metrohm Continuity/Insulation Tester. Condition is For parts or not working. Dispatched with Royal Mail 2nd Class. Now this may well work, but I've not had the opportunity to check it out. I has been kicking about for a while and I bought it a while back because it looked interesting. As with all test equipment, particularly of this vintage, it has been used... or well used. Nothing appears to be broken, but it's had a good working life.
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