https://www.mktester.com/transformer-oil-tester/transformer-oil-bdv-tester-three-cups.html
Product Characteristics：
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1. Dielectric strength tester for insulation oil use large capacity single-chip microcomputer control stable and reliable work
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2. Dielectric strength tester for insulation oil there is the function of temperature and humidity in time clock display and is equipped with grounding alarm to remind customers pay attention to safety
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3. Dielectric strength tester for insulation oil has a wide range of watchdog circuit to eliminate the phenomenon of crash
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4. Multiple operating option Dielectric strength tester for insulation oil program with GB1986 GB2002 two methods of national standard and custom operation able to adapt to a variety of different users choice.