Signs of an Un-Calibrated MultimeterA multimeter is an essential tool used to measure electrical parameters such as voltage, current, and resistance. If a multimeter has not been properly calibrated, it can lead to inaccurate measurements, which in turn can affect fault diagnosis and repair work. Below are some common signs that indicate a multimeter may be un-calibrated:1. Unstable Measurements Fluctuating Readings: When measuring the same circuit or component, the multimeter displays readings