10 Best True Rms Multimeters 2025 in the United States

The Fluke 117 Digital Multimeter is a reliable tool for both professionals and DIY enthusiasts. One of its standout features is the VoltAlert technology, which allows for non-contact voltage detection, adding a layer of safety and convenience. The AutoVolt automatic AC/DC voltage selection simplifies the measurement process by automatically identifying the type of voltage you're working with. Additionally, the low input impedance helps to prevent false readings due to ghost voltage, which can be a common issue in some environments.

The True RMS capability ensures accurate readings even on non-linear loads, making it versatile for various applications. For those who often work in dim environments, the large white LED backlight is a valuable addition, enhancing visibility. The multimeter also measures resistance, continuity, frequency, and capacitance, and records minimum, maximum, and average readings for comprehensive data analysis. In terms of accuracy, it boasts an impressive +/-0.5%, which is quite satisfactory for most electrical tasks.

The battery life is impressive, lasting up to 400 hours without the backlight, which reduces the need for frequent replacements. However, it’s important to note the unit’s weight of 550 grams might be a bit heavy for prolonged handheld use, and its physical dimensions are relatively large, which could be a consideration for portability. Also, while the device has a solid safety rating and comes with a 3-year warranty, it might be priced higher than some other multimeters on the market, which could be a drawback for those on a tight budget. In essence, the Fluke 117 is a robust and feature-rich multimeter that excels in accuracy and ease of use, though it might not be the most portable or budget-friendly option available.

The KEYSIGHT 34461A is a high-quality true-RMS multimeter designed with professionals in mind. It offers excellent accuracy, with a basic DC voltage accuracy of 16 ppm, providing very precise measurements suitable for tasks that require detailed and reliable results. Its resolution is impressive, down to picoamps (pA), allowing detection of very small electrical currents, and it supports a microamp range, which is great for sensitive measurements.

The 4.3-inch color graphical display makes reading measurements easier and clearer than traditional screens. It connects via USB or LAN/LXI interfaces, offering flexible options for data transfer and remote operation. This product is intended mainly for professional users, so it might be more complex or expensive than what a casual or hobbyist user needs.

If you need a precise, reliable multimeter for advanced electrical work and value detailed measurement and connectivity, this model fits well. However, if you are looking for a simpler, more user-friendly option or specific safety certifications for extreme environments, you might want to explore other models.