10 Best Clamp Meters 2025 in the United States

The AstroAI Digital Clamp Meter is a versatile and user-friendly tool designed for both household and industrial electrical tasks. It measures AC and DC current and voltage, along with resistance, capacitance, frequency, and more, making it useful for a wide range of troubleshooting and testing needs. Its True RMS capability ensures more accurate readings, especially in environments with complex electrical signals. The jaw opening is slim and compact, allowing it to fit comfortably around conductors in tight spaces. The meter features a clear backlit LCD screen and a built-in flashlight, improving readability in dimly lit areas.

Non-contact voltage detection with audible and visual alerts adds a layer of safety and convenience when checking for live wires without touching them. It also includes useful extras like data hold, max/min recording, and auto power-off to save battery life. Safety-wise, it meets overvoltage category III 600V standards and pollution degree 2, making it reasonably safe for most common electrical environments. However, it requires 2 AAA batteries, which may need frequent replacement depending on use.

While it offers a broad range of measurements, users must remember to clamp only around single conductors for current readings and avoid measuring voltage by clamping. This meter’s combination of features, ease of use, and safety certifications make it a solid choice for DIYers, electricians, and technicians who need a dependable and affordable clamp meter for everyday electrical testing.

The AstroAI Digital Clamp Meter is a versatile tool designed to address both industrial and household electrical issues. It effectively measures AC current, AC/DC voltage, resistance, capacitance, diode continuity, and performs live wire tests. However, it's important to note that it does not measure DC current, which could be a limitation for some users.

The device has a large jaw opening, allowing for easy measurement of AC current without interrupting the circuit, and its compact size makes it suitable for use in tight spaces. With features like data hold, max/min readings, auto shut-off, low battery indicator, and continuity buzzer, it offers convenience and ease of use. The LCD backlit screen and built-in flashlight enhance its usability in low-light conditions.

Additionally, the non-contact voltage testing feature with sound and light alarms adds a layer of safety, making it user-friendly. The clamp meter complies with environmental pollution degree 2 and overvoltage category III 600V safety standards, ensuring it meets necessary safety requirements. While the device is battery-powered, the inclusion of two AAA batteries in the package is a thoughtful touch. In summary, the AstroAI Digital Clamp Meter is a solid choice for those needing a reliable tool for various electrical measurements. Its inability to measure DC current is a notable drawback, but its range of other features and safety ratings make it a valuable addition to any toolkit.

The Fluke 376FC AC/DC Clamp Meter is designed for industrial and commercial electricians, offering a range of features that cater to their specific needs. It measures both AC and DC currents, with a robust current measurement range, making it versatile for various electrical applications. The inclusion of the iFlex current probe allows measurements in tight spaces, thanks to its flexible design. This can be particularly useful when dealing with complicated wiring setups.

One of the standout features is the True RMS capability, which provides accurate readings even for non-linear loads, a common scenario in modern electrical systems. The inrush measurement function helps to capture the initial surge of current, which is essential for diagnosing equipment behavior.

The Bluetooth connectivity is another significant advantage, allowing electricians to connect the meter to their smartphones. This feature means they can remotely log and monitor measurements, which enhances safety by keeping them at a distance while working on live circuits. The logging capabilities also make it easier to capture intermittent faults without needing constant supervision of the meter.

However, there are some potential drawbacks to consider. While the Fluke 376FC is packed with features, it may be more complex for beginners who aren't familiar with advanced measurements or smartphone connectivity. Additionally, its size could be a concern for those seeking a more compact tool, especially if they need to carry it around frequently. Display and readability are generally good, but in bright light, some users might find it challenging to view the readings clearly. Lastly, as with many professional-grade tools, it comes at a higher price point, which might not be justifiable for occasional users or DIY enthusiasts.

The Fluke 376FC is highly suitable for professionals needing a reliable and versatile clamp meter, particularly in industrial settings. Its advanced features cater well to those who require detailed and accurate electrical measurements.