Multimeters, clamp meters, insulation testers, circuit testers, and electrical safety equipment
3807 products

This autoranging megohmmeter measures insulation resistance up to 2000MΩ. Choice of 250,500 or 1000VDC test voltages. The large backlit dual display indicates test voltage output and insulation resistance. Low resistance, continuity and AC/DC voltage measurement functions. Other features include automatic discharge at the end of test, protective holster with stand, power lock on feature and data hold. Complete with test leads, carrying case and 6 AA batteries.

The Extech 380320 is an Analog Insulation Tester with a large, easy to read analog display. It features a live circuit warning which displays the actual AC voltage measurement. It also includes an automatic discharge circuit, lock power on feature for extended test times, and insulation resistance up to 400 MΩ. Complete with heavy duty test leads, alligator clip test lead, 6 AA batteries, hanging strap, and hard carrying case.

With the Extech 380395, measure insulation resistance up to 60 GΩ with test voltages of 500 V, 1000 V, 2500 V, and 5000 V. Its features include polarization index measurement (PI), dielectric absorption ratio measurement (DAR), AC/DC voltage measurement up to 600 V, peak and relative functions, and a 1 min to 15 min timer function for IR measurements. Comes with test leads, eight C batteries, 120 V AC adaptor, heavy duty carrying case, and a user manual.

With the Extech 380396, measure insulation resistance to 60 GΩ with test voltages of 500 V, 1000 V, 2500 V, and 5000 V. It features several measurements including polarization index (PI), dielectric absorption ratio (DAR), and AC/DC voltage to 600 V with a min/max function. It also has peak and relative functions, as well as a 1 to 15 minute timer function for IR measurements. Comes with test leads, eight C batteries, 220 V AC adaptor, heavy duty carrying case, and user manual.

The Extech 380400 Resistance Decade Box is very popular for product design testing and calibration because it can be substituted into a circuit and function in the place of any component with a standard value easily. Alternatively, it can be used to identify the best value for circuit operation then read that value from the switches. Then, a resistor of the size indicated by the decade box switches can be put into the circuit.

The Extech 380405 Capacitance Decade Box is very popular for product design testing and calibration because it can be substituted into a circuit and function in the place of any component with a standard value easily. Alternatively, it can be used to identify the best value for circuit operation, then read that value from the switches. A capacitor of the size indicated by the decade box switches can then be put into the circuit.

High accuracy and performance for low resistance measurements. Portable milliohm meter provides resolution to 0.1mΩ. Compact, durable field service housing with protective cover. Manual zero display adjust and overrange indication. Complete with 4-wire cables with Kelvin clip connectors.

The Extech 380465 is a Kelvin Clip Test Lead Set for Milliohm Meter Models 380460 and 380462. The 380465 is built from compact, durable field service housing with a protective cover.

Compact and precise, the Extech 380562 Milliohm Meter has 7 ranges and measures down to 0.01 mΩ using 4-wire Kelvin clip test leads. Measurements are displayed on the unit's large 20.3 mm (0.8 in), 1999-count LCD. It comes with a built-in comparator for Hi/Lo/Go resistance testing or selection. Complete with 4-wire cables with Kelvin clip connectors and power cord.

The 380565 is a set of Test Leads with Kelvin Clips for the Extech 380580 battery powered milliohm meter. Use these test leads and kelvin clips as extras or spare.

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.

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.

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.

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.

The Extech 381676A is a Pen Styled Multimeter with a Built in NCV detector. The 381676A features nine functions including AC/DC voltage to 600V, AC/DC Current to 200mA, Resistance, as well as Logic, Diode and Continuity tests. This meter has an easy to use rotary dial with alligator clips for one handed operation. Its convenient built in non-contact voltage detector allows for quick detection of live voltage. The 381676 comes complete with test leads, alligator clips, batteries and manual.

The Extech 382100 is a 3-Phase Power Analyzer/Datalogger that saves data (up to 30,000 sets of measurements) on an SD card in Excel format for easy transfer to your PC. It provides a full system analysis with up to 35 parameters including: V (phase-to-phase), V (phase-to-ground), A (phase-to-ground), KW / KVA / KVAR / PF (phase), KW / KVA / KVAR / PF (system), KWH / KVAH / KVARH / PFH (system), and Phase Angle. Readings are displayed on a large, dot matrix, sun-readable, backlit LCD. It comes with three current clamps, four voltage leads with alligator clips, eight AA batteries, SD memory card, Universal AC adapter (100 to 240 V), case, and user manual.

Constant Voltage/Current digital DC power supply with dual LCD

The Extech 382202 is a DC Power Supply which provides an adjustable 0 V to 30 V and 0 A to 1 A output. It features a dual backlit LCD display for current and voltage as well as short circuit and overload protection. Operates from 120 VAC ± 10%/60 Hz power source. Banana plug outputs. Complete with power cord.

Ideal for a wide range of applications including bench testing, field service, hobby, and telecommunication equipment, the solid state, compact Extech 382213 Digital Triple Output DC Power Supply delivers clean, reliable power while protecting itself and any device under test (DUT) from damage. It offers three choices of power output: adjustable 0 to 30 Volt, 0 to 3 Amp, plus fixed 5 and 12 Volt. Featuring a digital LCD display, the 382213 also includes overload and short circuit protection, constant voltage/current, easy snap terminals for 5 and 12 Volt outputs, and a current-limited front panel LED indicator. It complete with a power cord.

The 382252 is an Earth Ground Resistance Tester Kit which includes all hardware necessary to measure earth ground in 3 ranges from 20 to 2000 Ohms. Also tests AC/DC Voltage, resistance and continuity. Featuring Automatic zero adjustment and three earth ground resistance ranges 20Ω/200Ω/2000Ω. Complete with test leads, 2 auxiliary earth bars, carrying case, protective rubber holster and six 1.5V AA batteries.

The two 30V outputs can be combined in parallel for 10A or in series for 60V. Comes complete with 4 pairs of test leads (banana plug to alligator clip) and an AC cord.

The Extech 382275 power supply is an easy-to-configure, highly stable, lab grade DC power supply with maximum output power of 600 Watts. The new DC power supply offers two degrees of control over both current and voltage outputs (course and fine). Output is adjustable from 0 to 30 Volts DC and 0 to 20 Amps with (0.1 Volts/Amps resolution). Dual green LED displays offer easy-to-read, high contrast readouts of voltage and current values. The 382275 offers four operating modes: normal mode, with values controlled by front-panel knobs; preset mode, which offers three popular voltage presets at 20 Amps: 5.0 Volts, 13.8 Volts, and 25 Volts; set mode, with three user-customizable presets; and remote control mode, where the user can remotely adjust output power on/off, voltage and current. Other features include automatic constant current and voltage, high RFI immunity, excellent EMI, a thermostat-controlled variable speed fan, as well as over-voltage, over-temperature, and short circuit protection. The 382275 offers a compact, low profile design and small footprint without compromising output noise and transient response factors. Complete with power cord.

Power supply features dual LED displays, high RFI immunity, excellent EMI, and a Thermostatic Control Fan. Additional features include over-voltage, over-temperature, and short circuit protection. Operates at 220V, 50/60Hz and comes complete with AC power cord.

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.