Why Does the Zero Reading Drift on My UNI-T Digital Multimeter Due to Magnetic Fields?

You might notice your UNI-T multimeter showing a non-zero reading even when the probes aren’t touching anything. This zero drift, often caused by nearby magnetic fields, can ruin your measurements and make you question your tool’s accuracy. Magnetic fields from power cables, motors, or even desk lamps create tiny electrical currents inside your meter’s sensitive … Read more