Rcd Test Continuity Vac/Dc UT526 Electrical Insulation Tester Uni-T 500Mω 1000V. Model UT526. Model UT525 UT526. 220V(45Hz--65Hz) ±10%. Phase Switch(RCD) 0°and 180° √. 1000V 0.05MΩ~500MΩ ±(5%+5). 1000V(R=1MΩ) 1mA ±10%.
eBay