10 Best Clamp Multimeters 2025 in the United States

The AstroAI Inrush Digital Clamp Meter Multimeter stands out for its versatility and accurate measurements. With a current measurement range of up to 1000 A for both AC and DC, and voltage measurement capabilities up to 1000 V DC/750 V AC, it is well-suited for a variety of tasks including industrial electrical testing, high-power equipment maintenance, and solar PV projects. The inclusion of inrush current measurement is particularly helpful for diagnosing startup issues in motors, although it is limited to AC current only. This might be a drawback if you need to test DC inrush current specifically.

The VFD and LoZ modes enhance its accuracy in measuring currents and voltages on variable frequency drives and eliminate ghost voltages, respectively, which can be highly beneficial in complex electrical environments. Additional functions like temperature, resistance, capacitance, frequency, continuity, and NCV detection further expand its usability. The NCV feature adds a layer of safety by allowing voltage testing without physical contact. The device is thoughtfully designed with a backlit LCD and flashlight, improving readability in low-light conditions.

Data hold, max/min, auto/manual ranging selection, and REL/ZERO functions enhance its convenience and ease of use. It complies with high safety standards (IEC 61010-1, CAT IV 600V, CAT III 1000V), making it reliable for professional use. This multimeter is lightweight, making it portable and easy to handle during fieldwork.

The Fluke 376FC AC/DC Clamp Meter is a strong choice for industrial and commercial electricians needing precise and versatile current measurements. It can measure both AC and DC currents up to 1000A using its flexible iFlex probe, which is useful for accessing tight or awkward spaces. The meter includes a VFD low pass filter that helps provide more accurate readings when working with variable frequency drives, a common challenge in industrial settings.

One of its standout features is Bluetooth connectivity, allowing you to send measurements wirelessly to your smartphone. This is handy for monitoring values remotely, reducing the need for extra protective gear because you can read data safely from a distance. It also supports logging measurements over time and sharing reports or live video calls from the field, enhancing troubleshooting and collaboration. The display is digital and clear, and the device is powered by two AA batteries, making it lightweight and portable.

Fluke products generally meet high safety standards suitable for industrial environments. If you often work with complex electrical systems and value remote monitoring and data logging, this meter fits well. Those who require very large jaw capacity or detailed safety certifications should verify those aspects before purchase.

The Fieldpiece SC440 True RMS Clamp Meter appears to be a solid choice for those in the HVACR industry, offering a versatile range of functions suitable for both electrical and thermal testing. It boasts high accuracy in voltage and current measurements thanks to the True RMS sensing technology, which is particularly beneficial when dealing with variable frequency drives (VFD). The meter covers a comprehensive range of measurements, including temperature, capacitance, and microamps DC for flame diode tests, making it a multipurpose tool for HVACR professionals.

The inclusion of auto and manual ranging further adds to its usability, allowing for precise control over measurements. Safety is a significant focus with features like a high-voltage LED and beeper, continuity warning, and non-contact voltage detection, which enhance user protection during testing. Additional perks like detachable leads and alligator probe tips make for convenient, one-handed use.

The SC440's durability and comprehensive functionality make it a reliable choice for HVACR testing.