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