Best Diode Test Clamp Meters in 2026

Clamp Meter measures AC current and NCVT via clamp and AC/DC voltage, resistance, frequency, DC microamps, capacitance, duty cycle, diode test, and continuity via test-leads, and temperature with thermocouple

Non-contact voltage tester integrated into the clamp jaw

Backlit LCD for ease of viewing in low light

Versatile Digital Clamp Meter: Accurately measures AC/DC Current, AC/DC Voltage, Capacitance, Frequency, Duty Cycle, Resistance, Diode, Continuity and Live Wire Tests. This clamp meter is a really useful tool for solving industrial and household electrical issues.

Non-contact Voltage Testing: This Clamp Meter features non-contact voltage testing with sound and light alarms. When the Meter senses a weak AC signal, the green indicator light will come on and the buzzer will emit a slow, audible beep. when the Meter senses a strong AC signal, the red indicator light will come on and the buzzer will emit a brief beep

Multifunctional & Easy to read: Support Data Hold, Max/Min, Auto power off after 15 minutes inactivity, low battery indicator and continuity buzzer. The LCD Backlit Screen and Flashlight make it easy to use in a dark working area. ZERO function decreases the data error influenced by the Earth’s magnetic field, and helps you to obtain a more accurate measurement.

Accurately Measures: AC/DC voltage, only for AC current (not for DC current), resistance, and also provides diode and continuity tests

Jaw Opening: the Clamp measures the AC current in a conductor up to 26mm without interrupting the circuit

Additional Features: data hold, max reading, and an easy-to-read large LCD

True-RMS Autoranging Multi -Function Clampmeter with 3 and 3/4 digit LCD (3999 Counts): easy to use/operate; accurately measure AC current, AC and DC voltage, resistance. Can also do continuity, frequency, capacitance, temperature and diode tests

NCV or Non Contact Voltage Detector: detect presence of voltage in an electrical circuit or equipment without touching the wires, red LED will flash quickly when an excess electric field is detected, NCV sensor is at the right upper area of the clamp

With Accessories: Test probes, various types of test leads, crocodile clips, mini wire stripper tool, etc, has LCD display with backlight, data hold function, low battery detector, overload protection, auto power OFF after 15 minutes of inactivity

Auto-ranging Meter: Automatic select the appropriate decimal point place due to auto-ranngig function, suitable for 600A AC Current, AC/DC Voltage(600V), ,Duty Cycle, Diode,Temperature, (200Ω-20MΩ) Resistance Measurement.

Clamp Meter with NCV: Up to 28mm clamp jaw measures AC current without interrupting the circuit, safer to use; NCV detects the existence of AC voltage to troubleshoot electrical problems safely.

Continuity Test & Overload Protection: Designed to safely and accurately confirm the circuit with low voltage indication and overload protection. Light alarms if detects AC Voltage (90V-1000V) or live wire. Shows "OL" on LCD screen if overload.

🛠️ 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.

Product 1: True RMS feature for accurate readings regardless of waveforms

Product 1: 1.2" (30mm) jaw size fits conductors up to 500MCM

Product 1: Large backlit LCD display and built-in Flashlight

This multimeter can accurately measure up to 600A AC Current, Up to 600V 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.

Digital clamp meter offer a safe, effective way to test electric currents without stripping wires.

NCV non-contact voltage sensing, when detecting current and voltage, it will prompt sound and light according to the voltage intensity

🌡️ 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

[Great Helper] Wonderful 6000 Counts Clamp Multimeter

[True RMS] FKM Digital Clamp Meter used for AC current, AC voltage sine wave true RMS value, DC voltage, frequency, duty cycle, resistance, capacitance measurement and continuity, diode test, temperature measurement and non-contact voltage detection with less error & more accuracy

[Patented Double Open Clamp] The maximum wire diameter that the FKM Clamp Multimeter can measure is 1.024 inches without interrupting the circuit. Double open jaws meet your operating habits

【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 only for AC current (not 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 multimeter can measure is 1.42 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;

⚡🛠【With APP Function】 APP is to upload the multimeter measured values to the cell phone in real time, you can remotely monitor the measurement status, and can be data transfer and storage and other processing functions. Digital clamp multimeter readings through the LCD display, 6000 digits display.

⚡🛠【Automatic Range】The AC voltage and current measurement of this multimeter is true RMS measurement, and the measurement results are more accurate for different waveform signals. Select voltage, current, resistance, etc., measurement gear will automatically switch according to the specific measurement value, easy to use, do not worry about damaging the multimeter.

⚡🛠【Multifunctional Clamp Meter】HP-580S-APP universal clamp meter can be used to measure AC and DC voltage, AC and DC current, resistance, capacitance, frequency, duty cycle, temperature, diode forward voltage drop and on/off test, and non-contact AC voltage measurement (NCV) function with relative value measurement, data hold, max/min value hold, LCD backlight function.

⚡【AC/DC Clamp Meter】: The highly sensitive AC DC volt amp clamp multimeter feature with TRMS 6000 counts auto-ranging, be able to accurately measure AC/DC voltage,AC/DC current to 1000A,resistance,capacitance,diode,temperature(℃/℉),Hz,continuity buzzer test,etc.

⚡【Remote Display Via Bluetooth】：Scan the QR code and download the APP first.The wireless Bluetooth digital clamp multi-tester will auto connect with your smart phone in the AILink app(within 15m).Which convenient for you to monitor,log and analyze the max/min/current of volt amp ohm in real time.

⚡【Safety & Protection】：The amperage meter with rubber sheeve to protect your volt meter from being broken by fallen. Overload protection is up to standard of CATⅡ1000V or CATⅢ600V in all range.Non-contact voltage(NCV) function can detect voltage without touching any wires and avoid electric shock .

【True-RMS Multifunctional Clamp Meter】: Auto range, measure AC/DC voltage, AC/DC current, frequency, duty cycle, capacitance, resistance, temperature, diode, continuity, NCV, etc. Wide range of applications, perfect for home and professional use, automotive, home and industrial electrical troubleshooting.

【With NCV function】: Inrush Clamp Meter with non-contact voltage detection function, with a sensor to detect voltage and avoid electric shock without touching wires.

【Dual-color backlight, flashlight and high-pressure tips】: This multimeter with flashlight and LCD backlight, which is safer and more convenient in low-light conditions. When the voltage is over 80V and the current is over 3A, the orange backlight will turn on automatically to remind you to pay attention to safety.

6000Counts Clamp Multimeter -----The Clamp Jaw Up to 26mm, Measures DC/AC Current without Contacting the Circuit, Besides, CAMWAY Digital Clamp Meter Measures DC/AC Current Up to 600A, Can also Measure AC/DC Voltage, Resistance, Capacitance, Frequency, Temperature ,Inrush current,Diode,Continuity test,NCV,Null/Fire Wire Test

Multifunctional Meter ----- Flashlight, Backlight, Manual/Automatic ,True RMS measurement Function ,and also with a pair of Test Leads,a pair of Alligator clips, Thermocouple, The TRMS Digital Clamp Meter Measurement Range is Larger for Home,Professional Use, Automotive, Industrial Electrical Troubleshooting

Fire Wire & Inrush Current Measurement Function ----- With Fire Wire Measurement Function, CAMWAY Auto Amp Meter can also Measure the Starting Current, Inrush Current Function is Designed to Capture Inrush Current Accurately,Specially,Peak Hold Function Makes Tests and Records more Convenient

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.

Digital Clamp Meter Multimeters:✔ Autoranging clamp multimeter can be used to measure AC and DC Voltage, AC Current, Resistance, Diode test, Data Hold, Max Value Hold. troubleshoot electrical problems safely

voltmeter:✔ Made of high quality ABS, lightweight and portable,durable enough for long term use, Suitable for distribution box, electrical circuit, home users, enthusiasts, professional electricians and technicians

Auto-Ranging Multimeter:✔ NCV detection function , Non contact voltage detect, LCD display and easy for reading in dark light, The operator can access measurement result in a dark place with the flashligh

Portable and easy to use : Ultra-thin body ,lightweight and portable design,convenient for you to carry and store when you go out. With 3.5in high resolution LCD digital display screen,more clear and easy to measuring datas.Simple and easy use interface,you can access,store process and manage data by simply displaying the results in tabular form.

Multi-Function: True RMS AC voltage /current measurement.Data record function, you can record the measured data into internal memory, and then read and process the recorded data with your computer.Trend analysis accessible in chart mode,SCPI support.

Widely Use: With diode testing,continuity,temperature and other functions ,this digital multimeter can test AC / DC current,voltage, resistance,capacitance,etc.The true RMS multimeter is made of high quality ABS meterial,an excellent tool for instruments and laboratories,factories,radio enthusiasts and families.

Integrated tilt stand for easy bench use

Diode test for component level troubleshooting

Data Hold freezes display to "hold" measurement reading

Multifunctional Clamp Meter: Get precise readings with ease! This clamp meter measures AC current, DC/AC voltage, frequency, and resistance. Plus, it has added functions of diode test function, circuit on/off test, data retention, capacitance, relative value measurement, and max./min. value measurement. It's perfect for measuring power!

Non-contact Measurement (NCV): Achieve quick and safe electrical checks without feeling the pressure! With this clamp meter multimeter, you can measure the strength of electromagnetic fields without touching any wires. Be alerted of voltage presence with a simple beep and determine voltage levels effortlessly.

User-friendly Features: Get ready for the power-saving potential of your dc clamp meter with its smart sleep mode! It automatically switches off after 15 minutes of inactivity, conserving energy. The bright LCD backlight screen and built-in flashlight make it easy to use even in dimly lit environments, bringing light to every measurement.

✅ 【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).

【Big Screen & LowZ】: Multimeter tester with Large-screen double-layer display, easy to read and use, with intuitive features, efficient thumb wheel, and function switches for easy one-handed operation for measurement. which can display Hertz at the same time when measuring voltage，Low input impedance prevents false readings due to ghosting.

【Dual-color backlight, flashlight and high-pressure tips】: Digital multimeter with flashlight and LCD backlight, which is safer and more convenient in low-light conditions. When the voltage is over 36V and the current is over 1A, the orange backlight will turn on automatically to remind you to pay attention to safety.

【Multifunctional Clamp Meter】: Auto range, measure AC/DC voltage, AC/DC current, frequency, duty cycle, capacitance, resistance, temperature, diode, continuity, NCV, etc. Wide range of applications, perfect for home and professional use, automotive, home and industrial electrical troubleshooting.

WIDE APPLICATIONS - KAIWEETS HT118A Multimeter measures up to 600V AC/DC voltage, 10A AC/DC current and 60 MOhms resistance, electrical tester also tests temperature, capacitance, frequency, duty-cycle, wire on-off, and test diodes and continuity.

EASY OPERATION - Switch the dial to the function you need, and the LED lights on the jacks will shine accordingly. To plug in the leads is easy. Autoranging saves you the hassle of having to know which range of value. Large 2.9” LCD backlight display, easy-to-read digits offer a 6000-count resolution.

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.

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.

【T-RMS Clamp Meter with Multifuntions】The Digital Clamp Meter can accurately measure 600 Amp AC/DC Current, 600V DC/600V AC Voltage, Resistance, Capacitance, Diode, Continuity,Live/Zero wire. Easy to use for labs factories and households.The voltage tester is suitable for frequency conversion power supply, refrigeration equipment such as air conditioners and refrigerators, and motor performance testing.

AC Current Tester

【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.

【Quickly detect values and troubleshoot】The clamp meter can measure only for AC current (not 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 multimeter can measure is 1.42 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.

▲【Multi-Function】:This FraFong Clamp meter can be used as multi tester, which can support AC non contact current（2A/200A）, AC/DC voltage（600V）, resistance, temperature（-4~932°F）, diode and continuity testing. Besides, it also has NVC function, works well as a voltage detector pen. Absolutely a necessity for daily usage.

▲【Humanized Design】: With a side buckle design, this mutlimeter is more convenient to use in different usage scenarios. Large LCD backlit and data holding function make it more easier to read and use.

▲【TRMS 2000 Counts】:With the True-RMS function , it can accurately test the distortion of AC voltage/current signal and don’t need to interrupt the circuit. The measurement resolution of AC current can reach the milliampere level. Effective and accurate.