The Fluke 5725A is an original high-voltage & high-current precision power extension amplifier, exclusively matched with Fluke 5700A / 5720A multi-function calibrators to compensate insufficient high-voltage, high-current and high-frequency load capacity of base calibrators.

It contains two independent amplification channels: AC voltage amplification & AC/DC current amplification. Fully controlled by 5720A host via dedicated communication cable, no separate operation or programming required; users switch extended high-voltage/high-current ranges directly on calibrator front panel.