KE9202A single phase reference standard meter is used as power standard for the electric power departments, meter manufacturing companies and institutes of metrology.

KE9303 three phase reference standard meter is used as the power standard for the electric power departments, meter manufacturing companies and institutes of metrology; it is fit for all of the three phase energy meters test system with different modes.

KE9203 single phase reference standard meter is used as the power standard for the electric power departments, meter manufacturing companies and institutes of metrology; it is fit for all of the single phase energy meters test system with different modes. Class 0.02 Single Phase Reference Standard ..

KE9202B single phase reference standard meter is used as power standard for the electric power departments, meter manufacturing companies and institutes of metrology

KE9302A three phase reference standard meter is used as the power standard for the electric power departments, meter manufacturing companies and institutes of metrology; it is fit for all of the three phase energy meters test system with different modes.

KE9302B three phase reference standard meter is used as the power standard of three phase test system of electric power departments, meter manufacturing companies, and institutes of metrology