... voltage 60KV,80KV,100KV. WE ARE DIRECT MANAUFACTURE, PLS VISIT Automatic Breakdown Voltage Tester of Testing Insulation Oil is produced as ... D1816, IEC156, ASTM D899, etc. which adopts industrial single plate integrated circuit, new-style I/O ports, with unique inspection and ... . Small measurement, light weight, and convenient for outdoor operation. Fully Automatic Oil Electrical Strength Tester