Best Megger Insulation Tester-Great Product:Supco M500 Insulation
Its in good condition, a bit dusty, ships on its own without case.
Supco M500 Insulation Tester / LED Megohmmeter
ennoLogic Insulation Tester 50/100/250/500/1000V, Megohmmeter and Multimeter eM870M
Supco M500 M-500 Megohmmeter Insulation Tester Instructions
M500 by SUPCO - Buy or Repair at Radwell
SUPCO M500 Insulation Tester/Electronic Megohmmeter with Soft
Supco M500 Insulation Tester/Electronic Megohmmeter with Soft
Project, Simple ROV waterproof cameras
2500MΩ Insulation Resistance Tester Digital Meter Megohmmeter
VC60B LCD Digital Megohmmeter, Insulation Resistance Tester Megohm Meter 200MΩ/2GΩ
Digital Insulation Resistance Tester, BTMETER BT-6688B with Test Voltage 5000V