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This product is portable design,used in laboratory or on-site to auto check kWh meter error. | |||||
Accuracy class : 0.05 | |||||
Overload,short circuit,open circuit protection. | |||||
Reference meter and power source integrated. | |||||
As high precision AC voltage source and current source. | |||||
0-120A, 0-500V, 40-70Hz; | |||||
7 inch TFT touch screen |