The 2831E series from B&K Precision Corporation is a line of true RMS bench digital multimeters with 4½ digits. These meters are designed for precision measurements in a wide range of electronic test and measurement scenarios. If you're working on anything from circuit board testing to power supply evaluation, these multimeters are a solid choice.

One thing worth noting is their true RMS capability, which makes them particularly useful for measuring non-sinusoidal waveforms accurately. This feature is crucial in many applications where AC signals deviate significantly from a perfect sine wave, such as in switching power supplies or motor control circuits. Engineers tend to reach for these when they need reliable and precise measurements across different types of signals.

Another practical aspect is their 4½ digit resolution, which provides a good balance between accuracy and price. This level of precision is sufficient for most benchtop work without the need for more expensive instruments. The 2831E series is also known for its durability and ease of use, making it a go-to tool for both novice and experienced engineers alike.