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ZY9320 transformer ratio tester

ZY40A transformer DC resistance tester

Zyrz-2009 transformer winding deformation tester

Zyjd-r5 earth network grounding resistance tester

ZY8810 Grounding offline conduction tester

ZY3122 clamp earth resistance tester

ZY3121 grounding resistance tester

Zy-ct806a platform area (line branch) identification instrument

Zy-y03a handheld power quality analyzer

Zy-y06s multifunctional vector analyzer

Zy-y014a Three-phase Electricity Meter Field Calibrator (Level 0.1)

Zy-y08a Secondary pressure drop/load tester (wireless)