Digital Insulation Resistance Tester 0.1mω-2000mω Backlit Megohmmeter Output Voltage 100/ 250/ 500 Insulated Resistance Meter - Resistance Meters - AliExpress
Fluke 1507 Insulation Resistance Tester | Fluke
ETCR3520 Insulation Resistance Tester Portable LCD Digital 5KV Megohm Meter for Cable Motor Insulation Resistance Range 0.50MΩ-10.0TΩ(US Plug): Amazon.com: Industrial & Scientific
Amazon.com: Digital Insulation Resistance Tester - Voltage Testing Range 5000V, Meg ohmmeter Insulation Resistance 200G ohms, Auto Ranging Voltmeter with HV Indication (ANNMETER AN-6688B) : Industrial & Scientific