Topic | Current reading 1ma with no leads

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    • #3967 Reply

      The meter shows 0.00113 to 0.00095 A with no leads connected. How can this be used to measure CPU deep sleep currents which are in the uA? Is calibration required?


    • #3978 Reply

      Hi Brian –

      The meters are calibrated at the factory, but it sounds like you got a bad calibration. Typical offset is in the tens of microamps.

      We’re happy to replace your meter, very sorry for the trouble. Please email at to arrange it.

      Also there’s a “zero” button in the app that will zero out the DC offset, but it’s only a temporary offset. Your meter should not be reading 1mA off out of the box.


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