Closed loop (compensated) Current Transducer with hall effect ,can measure following currents: DC, ... AC, pulsed, etc Advantages:1. Closed loop (compensated) Current Transducer with hall effect ,can measure following currents: DC, AC, ... isolation up to AC 2500V。4. Printed circuit board mounting,measuring current through the center hole can be, ... prices, high quality KA100/SP1 Hall Current Transducer