LM 391

The LM 391 Precision Multimeter is a highly accurate digital multimeter designed for professionals and electronics enthusiasts. It delivers reliable measurements across a range of electrical parameters and includes advanced features to support precision diagnostics and troubleshooting. True RMS measurement for accurate readings of both AC and DC signals. 6000-count display for high resolution and clear visibility of results. Auto and manual ranging options to suit different testing scenarios. Built-in data hold and max/min functions to facilitate easier data analysis during troubleshooting. Safety rated CAT III 1000V and CAT IV 600V certification for protection in demanding environments. Compared to other multimeters in its class, the LM 391 stands out for enhanced measurement stability and faster response time. Its robust construction and comprehensive feature set surpass many previous models, making it a dependable tool for intricate electrical diagnostics. The unit integrates True RMS technology to capture actual effective voltage or current instead of an approximate average, which is important when measuring irregular waveforms. The ergonomically considered design and intuitive interface improve usability during extended use, while the rugged build and rigorous safety certifications support reliable operation in professional environments.