A "Megger" 100 Volt Safety Bridge Insulator Testing Set, 36cm Long
MEGGER BR4 Bridge Megger Testing Set Br4 | eBay
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LEAGY VAD78 Digital Insulation Resistance Tester - Accurate Megohm Meter for DC/AC Voltage Testing (20-1500V, 20-750V) and Resistance Measurement (0-5000 Megohms): Amazon.com: Industrial & Scientific