Best Cat Iii Clamp Meters in 2026

True-RMS clamp meter: This multimeter can accurately measure AC/DC Current, AC/DC Voltage, Frequency or Duty Cycle, Resistance, Capacitance and also provides Diode, Continuity and Temperature tests. True RMS for accurate measurements on non-linear loads. Easy to use for labs factories and household.

LowZ & LPF: Low input impedance helps prevent false readings due to ghost voltage. Low Pass Filter (LPF) for accurate measurement of variable frequency drive signals when measuring motors and transformer. To measure the current you need to clamp the meter around one of the wires and not the whole power cord.

NCV Detection Function: Non-contact voltage detection effectively check electrical status through measuring EM field intensity without touching any wires; The NCV button lies on the right side. Simply place your thumb on it and push.

CL120 Clamp Meter measure AC current via the clamp, and AC/DC voltage, resistance and continuity via test leads

Meter has backlit LCD for ease of viewing in low light and is CAT III 600V, Class 2 Double Insulated

RT210 detects the most common wiring problems in standard and GFCI receptacles

Digital clamp meter measures ac current to 400 amp, ac and dc voltage to 600v, and resistance to 4 kilohms

True RMS sensing meter provides accurate readings when measuring linear or non linear loads, regardless of waveform

Jaw opening measures current in a conductor upto 30 millimeter without touching or interrupting the circuit

Digital clamp meter measures AC current to 400 amp, AC and DC voltage to 600 v, and resistance to 4 kilo ohms. Does not measure DC current

The true RMS sensing meter provides accurate readings when measuring linear or non-linear loads, regardless of waveform

Jaw opening measures current in a conductor up to 30 millimeter without touching or interrupting the circuit. Resistance accuracy: 1.0% ± 5 digits

Connect your meter to your smartphone with Fluke Connect Measurements

Read measurements on your phone at a safe distance, wearing less PPE while your meter takes all the risks

Record results directly to your phone and the cloud

Compact: Small enough to fit in a work bag. It goes where you go.

For everyday applications, where True-RMS accuracy isn’t needed, the Fluke 302-Plus delivers reliable measurements time after time.

CAT III safety rated, and tough enough to withstand daily use. Won’t let you down on your job.

Connect your meter to your smartphone with fluke connect measurements

Read measurements on your phone at a safe distance, wearing less PPE while your meter takes all the risks

Record results directly to your phone and the cloud

Multi -Function T-RMS clampmeter that accurately measures linear or non-linear loads: can measure AC and DC current, AC and DC voltage, Low impedance, Continuity/Resistance/Capacitance, Temperature, Frequency, and Duty Cycle; Easy to use and operate.

Non-Contact Voltage (NCV) Detection: check if a conductor being measured carries a voltage higher than 90V AC without touching any wires; NCV sensor is at the tip of the clamp, press NCV to display EF, bring the sensor close to the conductor under test

Features: LCD display, low battery detection, overload protection, auto power off after 15 minutes, flashlight. Meets IEC safety standard 61010-1 with the CAT III 600V overvoltage protection standard

🛠️ INDUSTRIAL GRADE: The DL389B is a commercial grade clamp meter with enhanced capabilities for every industrial setting. Our clamp meter measures AC Amps, AC/DC Volts, AC/DC Microamps 2000µA, Capacitance 4000µF, Frequency 199.9KHz, Diode Testing, Duty Cycle, Temperature, Continuity, and Resistance 40MΩ.

📈 TRUE RMS: This industrial clamp meter features True RMS providing accurate measurements on any type of load.

🦺 ENHANCED SAFETY: The DL389B provides increased safety with a CAT IV 300V & CAT III 600V safety rating. This clamp meter includes Non-Contact Voltage to identify live lines. There are input jack locks to protect your meter from blowing a fuse.

[High Performance] AVID POWER auto-ranging 6000 counts digital clamp multimeter is ideal for accurate measurement of AC/DC voltage, AC/DC current, continuity, frequency, resistance, capacitance, diode, duty cycle, temperature and battery checking. This clamp multimeter is a must-have for home improvement, industrial, lab factories, automotive and household electrical problems.

[Multifunction] This AMP clamp meter features NCV testing and detecting function with backlight alarm, Auto power off, Low battery indication, Data retention, Max/Min data, 6000 counts Auto-Ranging. Top built-in LED light also provides extra illumination for the work area. When the voltage you measured is > 80V, the current > 3A, the LCD screen backlight turns orange to warn you of high voltage.

[Safety Compliance] Meeting IEC 61010-1, CAT. III 600V, CE standard. High Voltage Protection; Double insulated machine.

True-RMS

Capacitance measurement for start and run motor capacitors

Safety Rated: CAT III 600 V (AMP-310, AMP-320); CAT IV 600 V, CAT III 1000 V (AMP-330)

Large, easy to read backlight display automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement

Soft carrying case

True-rms ac/dc voltage and current for accurate measurements on non-linear signals

🌡️ DIFFERENTIAL TEMPERATURE: The DL429B calculates differential for you saving time on the jobsite and making your work easier and more efficient.

⚡ AC/DC AMPS: Our Clamp Meter Measures AC/DC Amps up to 600A and DC Microamps to 2000µA. This capability cuts down your need to have multiple tools on the jobsite

🖐️ HANDS FREE: Our clamp meter includes an easy-to-read backlight dual display with a magnetic mount for hands free operation. The unit also includes a work light to illuminate dark areas and test lead storage for easy transport

【T-RMS Clamp Meter with Multifuntions】The Digital Clamp Meter can accurately measure 1000 Amp AC/DC Current, 1000V DC/750V AC Voltage, Frequency, Duty Cycle, Resistance, Capacitance, Diode, Continuity, and Temperature. Easy to use for labs factories and households.

【Hold Function & Auto-range】Short press the Hold button to hold a stable measurement reading. Automatically select the measuring range that is best suited for the measurement performed. The measuring unit and resolution are adjusted at the same time.

【Advanced Designs & Larger Jaw】The multimeter is easy to carry and store with a compact design and has the characteristics of high reliability, automatic range, handheld clamp meter, etc. A larger jaw design can measure the maximum wire diameter of 2.6 inches, well meeting your operating habits and measurement needs.

【Quickly detect values and troubleshoot】The clamp meter can measure not only for AC current but also for DC current,AC and DC voltage, resistance, capacitance, continuity,diode and frequency (Hz),live/zero wire; Digital clamp meter is a perfect troubleshooting ammeter tool, you can accurately troubleshoot vehicle or internal electrical problems in a fraction of the time and get the job done more efficiently.

【Double Open Clamp】The maximum wire diameter that the fieldpiece multimeter can measure is 1.33 inches without interrupting the circuit. Double open jaws meet your operating habits

【NCV Defection Function】Non-Contact Voltage (NCV) Detector can easily and quickly determine whether there is a voltage.The NCV non-contact AC voltage detection function can be switched by short pressing the NCV button in any gear.

【Non contact Voltage Testing】: Stable, safe and reliable 3 1/2 digit LCD digital clamp meter, capable of AC/DC voltage, AC current, resistance, diode measurement, with on-off test and with backlight function. Tip: CM10 clamp meter can only measure AC current (can not measure DC current);

【Multi Functional Auto-Ranging Amp Meter】: Current grade added frequency power test function, when testing the current only need to switch to the frequency function to check the frequency of the circuit, no need to use the electric pen. Support Data Hold, Max/Min, Auto power off after 15 minutes inactivity, low battery indicator and continuity buzzer;

【True RMS Multimeter Clamp】: Accurate measurement of non-sine wave power function, the measurement result is true RMS, can accurately measure all current waveform;

〖Quick and Accurate AC/DC Amp Clamp Meter〗 is based on Hall Effect technology and is designed to be used in conjunction with multimeter for ac and dc current measurements.

〖Max. Jaw Opening〗The Clamp measures the AC current in a conductor up to 33mm without interrupting the circuit, Max. Conductor Size: ∅ 28mm.

〖Power/Low Voltage Indication〗When the battery's voltage is enough, the LED lights green. When the battery's voltage is less than about 7.5V, the LED lights red indicating that the battery is not high enough and should be replaced immediately.

UNI T Digital Clamp Meter UT200+ Series.Applicable for Industrial electricity,residential electricity,air conditioning,automobile

6000 counts True RMS and auto ranging. Measures ac/dc current (0.06-600A), small current, resistance (60mΩ), capacitance (60mF), temperature (-40℃-1000℃), frequency (10Hz-10MHz), diode test, audible continuity, etc.

Ac/dc voltage (600V), ac voltage frequency (10Hz-60kHz), and 600V high voltage frequency. 60mF large capacitance measurement. Versatile for diagnosing automotive, industrial and household electrical issues.

Continuous Test - Built-in two alligator pliers help you test the voltage and current of devices continuously with no cut by clamping it. Free your hands to adjust parameters for more accurate data.

1000V 10A - These multimeter pin s are capable of testing super high voltage up to 1000V 10A stably and safely. CAT III CAT IV certification provides you with a safe connection and ensures your safety when measuring.

Precise Values - Super sharp tips enable s to pierce through cable cortex and touch tiny electronic components to get precise measurement values. Let you know about the devices accurately.

UT210E mini clamp meter. An auto ranging clamp meter of great value by Uni-Trend. Versatile electric meters tester that diagnoses automotive, HVAC-R, repairing, troubleshooting industrial and household electrical issues. All in one.

Authentic UNI-T amp clamp multimeter. Works as AC current meter and DC amp clamp meter and measures: 2.000A (resolution: 1mA), 20.00A (resolution: 10mA), 100.00A (resolution: 100mA).

A compact voltage meter measuring AC DC volt. DC voltage measurement range: 200.0mV (resolution: 0.1mV), 2.000V (resolution: 1mV), 20.00V (resolution: 10mV), 200.0V (resolution: 100mV), 600V (resolution: 1V).

Measure safely with CAT III 1500 V rated clamp meter

Thin jaw for access to cables in crowded combiner boxes

Sturdy IP54 rated for outdoor use

Leak clamp with three scales: 2Ma/20Ma/60a

2000 counts

Minimum 0.001m resolution

✅ 【Multifunction】Data hold, Max/Min, Relative Value, NCV ,℉/℃ conversion，Flashlight and Backlight LCD display gives you clear measurements in poor light conditions.No operation within 15 minutes will automatically shut down, low battery reminder, Prevent the worry of running out of electricity when you need to use the multimeter.

✅【True-RMS clamp meter】The meter has comprehensive measurement functions to assist in professional work such as DC/AC volts, current, ohms, temp, continuity, Duty-Cycle, AC True RMS and diode tests. Ammeters can be used for industrial electrical, electrical switches, car engines, laboratories, factories and home maintenance.

✅【NCV Detection Function】Non-contact voltage detection function with a sensor to detect voltage and avoid electric shock without touching any wires.if detects AC voltage , the flashlight will light up and the buzzer will sound.

KPS-P740 TRMS leakage clamp with current scales up to 150A. Minimum resolution of 0.001m.

Maxillary: 0.32mm. 4000 counts. TRMS (measurement in true effective value). Filter function Low pass filter 50/60Hz.

DC/AC 600V voltage measure, AC 150A strength (40MΩ), capacity (40μF) and temperature (0ºC to +1000ºC).

HIGHLIGHTS AND DETAILS: TrueRMS, AC current measurement up to 400 A, Non-contact voltage tester, Switchable measuring point illumination, Opening range for current clamp 30 mm

RELIABLE MEASUREMENT RESULTS WITH FACTORY CALIBRATION

SPECIAL FEATURES: Data Hold, Min / Max, Relative measurement function, Auto power off function (can be deactivated), Low battery warning, Switchable display illumination

Digital clamp-meter measures leakage AC from 10mA to 200A and frequency to 1,000Hz

True RMS sensing meter provides accurate readings when measuring linear or non-linear loads, regardless of waveform

Clamp with 40mm (1.57 inches) jaw opening measures current without touching or interrupting the circuit

True-RMS clamp meter: This multimeter can accurately measure AC/DC Current, AC/DC Voltage, Frequency or Duty Cycle, Resistance, Capacitance and also provides Diode, Continuity and Temperature tests. True RMS for accurate measurements on non-linear loads. Easy to use for labs factories and household.

LowZ & LPF: Low input impedance helps prevent false readings due to ghost voltage. Low Pass Filter (LPF) for accurate measurement of variable frequency drive signals when measuring motors and transformer. To measure the current you need to clamp the meter around one of the wires and not the whole power cord.

NCV Detection Function: Non-contact voltage detection effectively check electrical status through measuring EM field intensity without touching any wires; The NCV button lies on the right side. Simply place your thumb on it and push.

Measure safely with CAT III 1500 V rated clamp meter

Thin jaw for access to cables in crowded combiner boxes

Work efficiently with dc power measurement, audio polarity and visual continuity

AC/DC CLAMP METER

Core jaw diameter: f34 mm (1.34 in)

AC current range: 1000 A (Max. display 999.9 A, 10 Hz to 1 kHz, True RMS)

Analog multimeter has a broader operating temperature range than digital multimeters and can be used outdoors

Analog clamp meter measures alternating current (AC) to 600 amp, RMS AC voltage to 600 volts (V), and resistance to 1,000 ohms

Transformer clamp with 1.64" (41 mm) jaw opening measures current without interrupting or touching the circuit