Multimeter with live Wire Detection DM91S

DM91S smart multimeter has two measurement modes, smart/auto, and is designed for efficient and accurate daily measurements. The device supports AC/DC voltage and current tests up to 600V and 10A, and is equipped with a 10,000-digit display. It features non-contact voltage detection, continuity and diode automatic check functions, and live/neutral identification. DM91S also features AC frequency measurement, data hold, and fuse blown alarm, providing smart functions in a compact form factor. It complies with EN61010-2-033, CAT III 600V safety standards. 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.