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Clamp Meters

10 Best Clamp Meters 2025 in the UK

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AZDelivery

AZDelivery 3 x USB Charger Doctor Current Voltage Charging Detector Battery Voltmeter Ammeter Multimeter Tester including eBook

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#1

Winner

10.0 score

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Fluke

Fluke 116/323 HVAC Combo Kit - Includes Multimeter and Clamp Meter

Current Range: up to 400 A
AC/DC Measurement: AC only
Display and Readability: clear display
Additional Functions: thermometer, microamps measurement

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Chosen by 1251 this week

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AZDelivery

AZDelivery 3 x USB Charger Doctor Current Voltage Charging Detector Battery Voltmeter Ammeter Multimeter Tester including eBook

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#2

10.0 score

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Proster

Proster Clamp Meter - TRMS 6000 Counts 800A DC/AC Current 600V DC/AC Voltage NCV Continuity Capacitance Resistance Frequency Diode Hz Test Auto Range Backlit Flashlight with Storage Bag

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10% OFF
#3

9.9 score

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KAIWEETS

KAIWEETS HT206D Clamp Meter, 6000 Counts Auto-Range Multimeter 600A AC/DC Current, 600V AC/DC Voltage with LCD Backlit, Capacitance, Continuity, Resistance, Duty, Diodes, Frecruncy, Temperature, NCV

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11% OFF
#4

9.9 score

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KAIWEETS

KAIWEETS Clamp Meter DC/AC current, Amp Meter Auto-ranging with D-Shaped Jaw, Clamp Multimeter Flashlight Backlight for Measuring AC DC Voltage Current Temperature Continuity Diode NCV, KC604

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#5

9.8 score

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FLUKE

FLUKE 323 pliers multimeter AC TRMS, 8 measures DC voltage up to 600 V

Current Range: 600 V
AC/DC Measurement: AC and DC voltage
Jaw Opening Size: 30mm
Display and Readability: clear
Additional Functions: True RMS, audible continuity sensor

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12% OFF

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#6

9.6 score

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Fluke

Fluke 773 Clamp Meter, Milliamp Process

Current Range: 4 to 20 mA
Additional Functions: Measuring milliamp signals
Safety Ratings: IEC 1010

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#7

9.4 score

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KLEIN TOOLS

Digital Clamp Meter, Auto Ranging 400 AMP Measures Electronic AC/DC Voltage AC/DC Current Resistance and TRMS, Klein Tools CL390

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#8

9.2 score

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Fluke

Fluke 325 Clamp Multimeter AC-DC TRMS

Current Range: up to 400A
AC/DC Measurement: AC/DC current 400A, voltage 600V
Jaw Opening Size: 30mm
Display and Readability: readable display, no advanced backlighting
Additional Functions: temperature, frequency, capacitance
Safety Ratings: CAT IV 300V, CAT III 600V

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#9

9.0 score

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Fluke

Fluke T5-600 Voltage Continuity Tester Electrical OpenJaw Current Clamp Meter with GS38 Probes 600v AC/DC

Current Range: up to 600 volts AC/DC
AC/DC Measurement: supports AC and DC
Safety Ratings: meets national electrical standards

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#10

8.8 score

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Martindale

Martindale CM79 600 A AC/DC Auto Ranging True RMS Clamp Meter,Yellow

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Our Top Picks

#1

Winner

Fluke 116/323 HVAC Combo Kit - Includes Multimeter and Clamp Meter

10.0  score

Fluke 116/323 HVAC Combo Kit - Includes Multimeter and Clamp Meter

Fluke

10.0  score

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The Fluke 116/323 HVAC Combo Kit is a reliable choice for those in the HVAC industry. This kit includes the Fluke 116 Digital Multimeter and the Fluke 323 True-rms Clamp Meter, catering well to HVAC technicians' needs. One of its standout features is the built-in thermometer, which is particularly useful for HVAC applications, making temperature measurement straightforward without needing additional tools.

The clamp meter can measure up to 400 A AC, which is suitable for most HVAC current measurement requirements. Its true-rms capability ensures accurate readings even with non-linear loads, which is a plus for precision in testing. Additionally, it supports microamps measurement, useful for testing flame sensors—a critical task in HVAC maintenance.

Regarding usability, the kit is user-friendly with a clear display that aids readability in various working conditions. The included accessories, like test leads and manuals, add to the convenience factor by providing everything needed out of the box. Its compact size and relatively light weight (549 g) enhance portability, beneficial for fieldwork.

The combo kit is robust and precise, but it has a few limitations. The jaw opening size isn’t specified, which could be crucial for users needing to measure larger conductors. Also, it only measures AC current, which may not suffice for those who need DC current measurement capabilities. The longstanding availability since 2013 suggests it is a trusted option by many professionals.

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Buying Guide for the Best Clamp Meters

Choosing the right clamp meter can be a bit overwhelming, but understanding the key specifications can help you make an informed decision. A clamp meter is a versatile tool used to measure electrical current without having to disconnect the circuit. It's essential for electricians, technicians, and DIY enthusiasts who need to diagnose electrical issues safely and efficiently. When selecting a clamp meter, consider the following key specifications to ensure it meets your needs and provides accurate readings for your specific applications.
Current RangeThe current range of a clamp meter indicates the maximum and minimum current it can measure. This is important because it determines the types of electrical systems you can work with. Clamp meters typically come with ranges like 0-400A, 0-600A, or even higher. For residential and light commercial use, a lower range (up to 400A) is usually sufficient. For industrial applications, you might need a higher range (600A or more). Choose a clamp meter with a current range that matches the highest current you expect to measure.
AC/DC MeasurementClamp meters can measure either AC (alternating current), DC (direct current), or both. This specification is crucial because different applications require different types of current measurement. AC measurement is common in household and commercial electrical systems, while DC measurement is often needed for automotive and solar applications. If you only need to measure household currents, an AC-only clamp meter will suffice. However, if you work with a variety of electrical systems, a clamp meter that can measure both AC and DC is more versatile.
Jaw Opening SizeThe jaw opening size of a clamp meter determines the maximum diameter of the conductor it can encircle. This is important for ensuring the meter can fit around the wires or cables you need to measure. Jaw sizes typically range from 17mm to 45mm or more. For standard household wiring, a smaller jaw opening is usually adequate. For larger cables found in industrial settings, a larger jaw opening is necessary. Choose a clamp meter with a jaw size that can accommodate the largest conductor you expect to measure.
Display and ReadabilityThe display of a clamp meter shows the measurement readings and other relevant information. A clear, easy-to-read display is important for accurate and efficient work. Look for features like backlighting, large digits, and high contrast, which can make the display easier to read in various lighting conditions. If you often work in dimly lit areas, a backlit display is particularly useful. Ensure the display is large enough to read comfortably without straining your eyes.
Additional FunctionsMany clamp meters come with additional functions such as voltage measurement, resistance measurement, continuity testing, and temperature measurement. These extra features can make the clamp meter more versatile and useful for a wider range of tasks. Consider what additional functions you might need based on your typical work. For example, if you frequently troubleshoot electrical systems, having voltage and continuity testing capabilities can be very helpful. Choose a clamp meter with the additional functions that align with your specific needs.
Safety RatingsSafety ratings indicate the environments in which the clamp meter can be safely used. These ratings are usually given in CAT (Category) levels, such as CAT II, CAT III, and CAT IV, which correspond to different types of electrical environments. Higher CAT ratings indicate higher levels of protection against electrical surges and are suitable for more demanding environments. For basic household use, a CAT II rating is typically sufficient. For commercial and industrial applications, a CAT III or CAT IV rating is recommended. Choose a clamp meter with a safety rating that matches the environments you will be working in.