Extech
Handheld test & measurement instruments — humidity, temperature, water quality, power, and more
Extech Clamp Meters
20 products across 16 product families
2 models380942 Clamp Meter+ DMM
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2 models380976-K Clamp Meter
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2 modelsEX623A 600A Dual Input AC/DC Clamp Meter + IR
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2 modelsEX655 Clamp Meter TRMS 600A AC/DC w/NCV
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380926 Clamp Meter + DMM, 2000A, AC/DC, TRMS
The Extech 380926 is a category IV, 2000-Amp, TRMS AC/DC clamp meter with a rugged 2 in. jaw to accommodate two 500 MCM cables. A built-in full-function DMM can measure AC/DC voltage and current, resistance, capacitance, frequency, duty cycle, diode and continuity. Measurements are displayed on the large 4000 count backlit display for easy viewing in dimly lit areas. Additional features include DCA push button zero, Data Hold, and Relative function. Complete with test leads and 9V battery.

380941 Clamp Meter+ DMM, Mini 200A AC/DC
The compact Extech 380941 is a 200 Amp mini AC/DC clamp meter with a small diameter jaw designed to reach in small areas while providing 10mA resolution (DC) and very low-current sensitivity. This mini clamp meter is useful for troubleshooting tasks in plant maintenance, electrical, HVAC, and telecom work, as well as home electrical, fleet maintenance, marine, and motorcycle repairs. The 380941 has a CAT III 300-Volt safety rating and a one year warranty. Comes with batteries and manual.

380947 Clamp Meter 400A AC/DC, TRMS, Freq
The compact Extech 380947 is a 400 Amp True RMS mini clamp meter. This meter has a small diameter jaw designed to reach in small areas while providing 1mA resolution and very low-current sensitivity. This mini clamp meter is useful for current and frequency related troubleshooting in plant maintenance, electrical, HVAC, and telecom work, as well as home electrical, fleet maintenance, marine, and motorcycle repairs. Comes with battery and manual.

380950 Clamp Meter, Mini, 80A, AC/DC
The compact Extech 380950 is a mini AC/DC clamp meter. The 380950 has an extra-small diameter jaw designed to reach into very small areas while providing a 1 mA resolution and very low-current sensitivity. This amp clamp performs essential troubleshooting tasks in plant maintenance, electrical, HVAC, and telecom work as well as residential, automotive, fleet maintenance, marine, and motorcycle electrical repair. Complete with test leads, two 1.5V AAA batteries and carrying case.

382357 Resistance Tester Clamp-on, Ground
The 382357 is a Clamp-On Ground Resistance Tester that enables non-contact measurements of ground conductors. True RMS AC Leakage current range of 0.2mA to 30A with 1.000mA resolution. Programmable Datalogging with 116 data points. Performs without the need for auxiliary spikes. Complete with 9V battery, Resistance check plate and durable metal storage case.

MA120 Clamp Meter, Mini, AC/DC w/Ncv/flashlight
The MA120 is a 200 Amp AC/DC mini clamp meter with built-in AC voltage detector and built in LED flashlight. The meter measures Frequency up to 1 kHz with 0.01Hz resolution, auto ranges with auto power off and data hold functions. Complete with a year warranty, 2 AAA batteries and soft case.

MA1500 Clamp Meter, TRMS AC/DC w/NCV
The MA1500 is a 1500A True RMS AC/DC Clamp Meter. 2.0 in. (52mm) jaw size for conductors up to 500MCM with True RMS for accurate readings of non-sinusoidal waveforms. Additional features include: Relative Mode for Capacitance Zero and Offset Adjustment, Data Hold, Peak Hold, MIN/MAX, Auto Power Off, and Inrush function to capture transients during motor startup. Complete with test leads, Type K bead wire temperature probe, 9V battery and carrying case.

MA440 Clamp Meter, 400A AC w/NCV
Three models to choose from, with or without True RMS and AC or AC/DC Current functions. Choose True RMS model for accurate readings of non-sinusoidal waveforms, model with DC Current function for automotive applications, or model with Type K function when applications require Temperature measurements. The MA440 Series meters are fully loaded with multimeter functions and built-in non-contact voltage (NCV) detector to meet your application needs!

MA443 Clamp Meter, 400A TRMS AC w/NCV
Three models to choose from, with or without True RMS and AC or AC/DC Current functions. Choose True RMS model for accurate readings of non-sinusoidal waveforms, model with DC Current function for automotive applications, or model with Type K function when applications require Temperature measurements. The MA440 Series meters are fully loaded with multimeter functions and built-in non-contact voltage (NCV) detector to meet your application needs!

MA445 Clamp Meter, 400A TRMS AC/DC w/NCV
Three models to choose from, with or without True RMS and AC or AC/DC Current functions. Choose True RMS model for accurate readings of non-sinusoidal waveforms, model with DC Current function for automotive applications, or model with Type K function when applications require Temperature measurements. The MA440 Series meters are fully loaded with multimeter functions and built-in non-contact voltage (NCV) detector to meet your application needs!

MA63 Clamp Meter TRMS 60A AC/DC w/NCV
The MA63 is an AC/DC current clamp with NCV voltage detector and full overload protection. Manual ranging clamp meter with three Current ranges and AC/DC voltage to 600V. The 6000mA range allows for low current measurements that may be used in the automotive industry. Unique VFC (variable frequency control) mode helps troubleshoot and diagnose HVAC applications that are variable frequency driven. The MA63 also features resistance, capacitance, frequency, diode and continuity measurements as well as data hold low battery indicator, and auto power off functions. Complete with test leads, carrying case, and two AAA batteries.

PQ2071 1000A 3-Phase Power Quality Clamp Meter
The PQ2071 is a 1-/3-Phase 1000 Amp True RMS AC Power Clamp Meter. Extech's multifunctional PQ2071 Power Clamp meter operates as a True RMS Clamp Meter, Power Meter, Multimeter, and AC Voltage Detector. Featuring a CAT IV-600 Volt safety rating, the PQ2071 measures AC Current, Voltage, Frequency and Power including True Power, Apparent Power, Reactive Power and Active Power. Measures 1-Phase and balanced 3-Phase True Power (kW), Apparent Power (kVA), Reactive Power (kVAR) and Active Power (kWh), plus Power Factor and Phase Angle. Featuring a 2.16 in. (55 mm) clamp jaw opening. Large dual backlit LCD display (9999 count) with bargraph. Frequency measurements to 200Hz. manually store/recall up to 99 data sets. Data Hold, Max/Min, and Auto power off functions. USB interface for connection to a PC for data logging function with included software. Complete with test leads, four color-coded leads and alligator clips, USB cable, PC software, 9V battery and soft case.
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