Clamp meters offer a safe, effective way to test electric currents without stripping wires. Whether you are a homeowner or a professional electrician, you can use a clamp meter to troubleshoot and resolve electrical issues.
Etekcity Auto-Ranging Clamp Meter – Editor’s Pick
We were pleased with the clamp’s auto-ranging function. What’s more, readouts were accurate every time. On top of that, the bright LCD screen made it easy to view the results. We were able to use the Etekcity to test both AC and DC voltages, continuity, resistance, and diode. As such, we highly recommend this tool to both professionals and amateurs working on electrical projects.
- Accurate voltage measurements
- Jaws open 26 millimeters
- Sleep mode after 5 minutes of inactivity
- 2-year warranty
- Lifetime of tech support
- Hold, max, and select functions
- LCD display
- Carrying bag included
- Low battery life
Uni-T Mini Clamp Meter – Top-Selling Mini Clamp Meter
The continuity reading is complemented by an audible buzzer. On top of that, it has the potential to store multiple readings. Despite its small size, the Uni-T has a jaw capacity of 17 millimeters.
The Uni-T automatically shuts off after 15 minutes of inactivity. It also has a low-battery indicator that kicks in when it is putting out less than 2.5 volts. The device is powered by two AAA batteries. It has an easy-to-read LCD screen. While it can only measure up to 100 amps, we still consider it to be one of the most versatile clamp meters on the market.
- Small and portable
- AC and DC voltage measurements as high as 100 amps
- Lighted display
- Multiple modes (max, min, zero)
- Measures resistance
- Limited current measurements
Fluke’s 323 Clamp Meter – Top Upgrade Option
The Fluke has a durable shell. It can withstand plenty of abuse. Its soft-shelled case goes along way to protect the screen and buttons. The 223 also has incredible battery life. If you need a meter that can handle regular use, the Fluke 323 is a dependable option.
- True RMS conversions
- Measure AC current
- Measures AC and DC voltages as high as 600 volts
- 30-millimeter jaw opening
- Measures both linear and non-linear loads
- Conductivity sensor with buzzer
- Includes zip-up carry case
- No slots for probes
Klein Tools Clamp Meter – Most Durable Clamp Meter
The clamp even features a low-impedance mode that can be used to identify stray voltages.
This clamp meter makes it easy to make repairs and improve the safety of electrical systems. It has an onboard low-battery indicator and an easy-access battery port. Its double insulation provides users with the utmost protection. A thermocouple probe even enables users to test the temperature of wires.
- Leads measure AC and DC voltages
- Diode tests
- Low-impedance mode
- Can withstand a 6.6-foot drop
- Low-battery indicator
- Includes carry case
Fluke 324 True RMS Clamp Meter – Most Readable Display
It offers AC measurements up to 400 amps. On top of that, the leads can be used to account for currents as high as 600 volts. The 324 also provides users with accurate resistance, capacitance, and temperature readings.
The meter offers a gaping 30-millimeter jaw. It folds up easily and can be stored in the provided zip-up carrying case. The Fluke 324’s high price makes it ideal for professional electricians. Of course, that’s not to say that homeowners would be disappointed by this awesome tool. This resilient handheld clamp meter can’t be beat.
- AC current measurements as high as 400 amps
- AC and DC voltages with a 60-volt limit
- Measures resistance, capacitance, and temperature
- 30-millimeter jaw opening
- Audible buzzer for continuity
- Small and portable
- Large backlit screen
- Advanced RMS technology
- Lead compartments and carrying case
Aimo MS2108A Auto-Ranging Clamp Meter – Top AC/DC Current Measurement
You can take this device into the field without having to worry about inferior knobs or buttons. On top of that, the Aimo has impressive battery life. While the instruction manual needs a little tweaking, it’s something we can look past. At just under $50, you’d be hard-pressed to find a more accurate budget-rate meter. The device comes with one lead and a canvas carrying bag.
- Measures alternating and direct currents
- Measures voltages
- Measures resistance, frequency, capacitance, duty, continuity, and diode
- High-resolution LCD display
- 750-volt AC measurement limit
- Over-range protection
- Hold function
- Poor instructions
Sperry Instruments DSA500A Digital Snap-Around Meter – Top Multi-Function Device for the Price
The clamp is a digital snap-around device that hugs an electric voltage for more accurate results.
The Sperry Instruments device comes with two leads and a pair of AAA batteries. On top of that, the set includes a durable carrying case and comprehensive instructions. Whether you’re testing motor parts or home wiring, you’ll have no trouble using the DSA500A. It’s easy to read in all lighting conditions. Best of all, it’s remarkably accurate.
- Comes with two test leads and AAA batteries
- Five functions
- Measures AC current (400 amp limit)
- Measures alternating and direct voltages (600-volt limit)
- Ergonomic design
- Automatic shutoff feature
- Includes carrying case
Amprobe Electric Meter Bundle – Top-Selling Clamp Meter Bundle
It can register currents as 310 amps and voltages as high as 600 volts. The line splitter can wrap itself around both small- and large-diameter power cords. It has one- and ten-time loops for accurate measurements of high and low voltages. It is suitable for currents up to 120 volts and 15 amps. Finally, the socket tester allows you to test GFCI outlets with ease. The device enables you to identify substantial wiring in the press of a button. Like most Amprobe tools, it features UL and CSA certifications.
Overall, this package offers consumers the most bang for their buck. With an assortment of accurate tools, most homeowners and electricians can pull off dependable repairs. The Amprobe bundle is exceptionally rugged. What’s more, it boasts a long-lasting battery and plenty of functions.
- True RMS
- Measures capacitance
- Compatible with two- and three-wire power cords
- Includes Amprobe meter, ELS2A line splitter, and ST-102B socket tester
- Registers up to 600 volts
- Measurements to nearest tenth of amp
- Trusted manufacturer
- Different measurement modes can be confusing
Digital Clamp Meter Uni-Trend UT203 – Most Long-Lasting Clamp Meter
When it fit, which was most of the time, we were able to garner accurate AC/DC, resistance, temperature, diode, and continuity readings.
As a bonus, this device boasts several unique modes. First off, it’s an auto-ranging meter. It also has hold, sleep, and low-battery functions. On top of that, it is lightweight, durable, and compact. We’d chuck this beastly tool in the back of a truck without giving it a second thought. Of course, it also meets or exceeds all of our safety requirements.
- Measures alternating and direct currents up to 600 volts
- Measures alternating and direct voltages up to 400 amp
- Comes with two test leads
- Well-written user manual
- Measures frequency
- Overload protection
- Ergonomic and portable
Mastech MS2109A True RMS Digital AC/DC Clamp Meter – Best Clamp Meter Design
The Mastech has a good-sized digital display with a bright backlight. It features a low-battery indicator as well as an automatic power-off mode. You can store several data sets for easier recalls and comparisons. The Mastech takes three AAA batteries. A temperature probe and two leads are included in the kit.
- Work light and back light
- Low battery indicator and automatic shutoff feature
- Hold and other data storage features
- Thermocouple temperature measurements
- Measures AC/DC voltage and current
- Measures resistance, capacitance, frequency, and duty cycle
- Non-contact voltage detector
- Lacks accuracy
What to Look For in a Clamp Meter
Your clamp meter must offer consistent and accurate measurements. A dependable clamp meter puts out identical measurements for a single current. You can rule out accuracy issues by opting for a model from a trusted brand.
A clamp meter is a handheld device. As such, it should be portable, durable, and easy to use. We recommend opting for a meter with a glowing LCD screen and distinct controls. Ensure that the device is durable enough to withstand a few bumps and bruises. Always opt for a model that works well in both dim and bright conditions. You might be testing a wire in a vehicle or a crawlspace. Where ever your electrical work takes you, you want to be well-prepared.
Some clamp meters offer an assortment of data tools, such as auto-ranging, holds, and sleep functions. Auto-ranging features enable users to receive automatic readouts. This is extremely helpful if you do not know the resistance range of the current you are testing. Instead of flipping through several settings, you can simply set your clamp meter to its auto-ranging setting. Data holds are also helpful. They enable you to store and compare measurements. A meter that can store more than one measurement is extremely desirable. Of course, auto-shutoff and sleep functions enable you to conserve battery power without making a conscious effort to do so.
Most clamp meters provide you with a measurement of AC currents. However, some meters also offer AC/DC voltage readings. On top of that, some clamp meters provide continuity, resistance, capacitance, and diode measurements or reports. Continuity readings determine whether a current is complete and connected. Resistance measures how a electric current flows through a device. It is reported in ohms. Meanwhile, a diode is a device that keeps currents flowing in one direction. Detailed readings provide users with a more in-depth understanding of electric currents. This makes for safer, more accurate repairs.
Video Tutorial: How To Use a Clamp Meter
We hope you enjoyed our roundup of the top-ten clamp meters. These incredible devices enable you to map out electrical connections without performing invasive procedures. Keep in mind that you need to have a sound understanding of electrical metrics to put these instruments to good use. With that said, the most user-friendly machines on our list were recommended by professional electricians. Before you opt for the most technical and complicated clamp meter, look for one that provides accurate and reliable metrics. On top of that, find one that’s durable and easy carry. With that, you’ll be set for a lifetime of electrical tests!