High-Sensitivity TRMS Multimeter DM100A

DM100A is a high-sensitivity True RMS (TRMS) multimeter designed for precise and flexible electrical testing. It measures AC/DC currents down to microamps and voltages down to 1mV, making it ideal for electronic and industrial applications. The 10,000-digit display provides clear and reliable readings of voltage, current, resistance (up to 60MΩ), capacitance, and frequency. The device features fast checks for continuity and diodes. True RMS technology provides accurate AC measurements even with unstable waveforms. The DM100A also supports temperature testing with a K-type probe (optional). This multimeter meets CAT III 1000V safety standards and is powered by two AA batteries. Its large screen and convenient controls make it easy to use in any environment. Frequently Asked Questions Why does my multimeter show “OL” or “1”? When your multimeter displays “OL” (Over Limit) or “1”, it usually means the measurement exceeds the selected range or the circuit is open. For example, if you’re measuring resistance and the probes aren’t touching anything (or measuring an open circuit), your multimeter will show “OL” or “1” to indicate that the value is out of range. Switching to a higher range or reconnecting the probes usually resolves the issue. Yes, many digital multimeters come with a built-in temperature measurement function. These models typically include a K-type thermocouple probe that allows you to measure temperatures in Celsius or Fahrenheit. Check your multimeter’s specifications to see if it supports this feature. It’s especially useful for HVAC technicians or electronics troubleshooting.