10 Best Fluke Volt Meters 2026 in the United States

The Fluke 1587 FC 2-in-1 Insulation Multimeter is a versatile tool suitable for both insulation testing and general multimeter functions. It offers True RMS measurements, ensuring accurate readings for both linear and non-linear loads. The selectable insulation test voltages up to 1000V make it adaptable for various testing scenarios.

The inclusion of PI/DAR timed ratio tests and Trend It graphs allows for more in-depth analysis and faster identification of issues. Its memory storage feature, accessible through the Fluke Connect Measurements App, helps in reducing manual errors and facilitates historical data tracking, which is useful for ongoing maintenance and diagnostics.

The temperature compensation feature through the app further enhances measurement accuracy by accounting for temperature variations. Additionally, the VFD low pass filter allows for precise motor drive measurements, and the auto discharge of capacitive voltage adds an extra layer of safety for the user. However, the multimeter is relatively bulky with dimensions of 12.3 x 17.5 x 3.94 inches and a weight of 300 grams, which could make it less portable compared to smaller models. The need for two A batteries also means users should keep spares on hand for uninterrupted usage.

The Fluke 378FC is a robust clamp meter designed for professionals who need accurate and safe electrical measurements. It offers True RMS (TRMS) capability, ensuring precise readings even with complex electrical signals, making it reliable for both AC and DC voltage and current. One standout feature is its non-contact voltage detection using FieldSense technology, allowing you to measure voltage without touching live wires, which enhances user safety.

The meter supports wireless operation and includes a power quality indicator to quickly assess if your equipment or power lines have faults—ideal for troubleshooting industrial or commercial power issues. It is auto-ranging, so it automatically selects the correct measurement range, simplifying use and reducing errors. The display is clear and designed for readability, helping you interpret results easily. With a safety rating suitable for high-voltage environments and a sturdy build, it’s durable enough for tough job sites.

The meter weighs over 3 pounds, which might feel a bit heavy if you need to carry it around all day. While it is a powerful tool, some features may be more than casual users require, and the price could reflect its advanced capabilities. This meter is well suited for electricians and technicians who need a reliable, versatile tool for detailed and safe electrical measurements.

The Fluke 355 True RMS Clamp-Meter is a professional-grade tool designed for measuring AC and DC currents up to 2,000 amps, with a wide voltage range (AC up to 600V, DC up to 1,000V) and additional functions like frequency and resistance measurement. One of its strong points is the True RMS capability, which ensures accurate readings even with complex electrical signals, making it suitable for both residential and industrial environments where non-linear loads are common. The clamp jaw opens up to 58mm, allowing it to measure large or multiple conductors without disconnecting wires, which adds convenience and safety. It also has a useful inrush current feature for checking motor startups, helping diagnose electrical issues effectively.

The meter meets high safety standards (CAT IV 600V and CAT III 1,000V), meaning it’s safe for use in demanding electrical environments. Build quality is robust, with a durable casing designed to withstand rough use, and the display is clear and easy to read. It is powered by AA batteries, which are included, so it's ready to use out of the box.

The meter is somewhat heavier and bulkier than simpler models, and it relies on manual ranging rather than auto-ranging, which might be less convenient for beginners. Its price point and features clearly target professionals or serious enthusiasts rather than casual users. The Fluke 355 is a reliable, accurate, and safe clamp meter ideal for electricians and technicians who need precise measurements and durability in tough working conditions.