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Extech Instruments is a full-line supplier of handheld electronic measuring equipment, other handheld measuring instruments, thermal imaging cameras, and portable printers. They offer the Extech Advantage™, providing innovation, selection, and support to all of their customers.
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Multimeters (62)

Multimeters are the instrument of choice when you need to measure voltage, current, or resistance

Megohmmeter/Insulation Resistance Testers

Megohmmeter/Insulation Resistance Testers (13)

Megohmmeters, or Insulation Resistance (IR) Testers, are used to measure the resistance, integrity and safety of electrical wiring insulation

Clamp Meters

Clamp Meters (95)

A Clamp Meter combines a current clamp with the basic functions of a digital multimeter, also called DMM. Clamp the "jaw" around a conductor to measure current.


Oscilloscopes (1)

An Oscilloscope is an instrument that is used as a graph displaying device of an electrical signal. The graph will show how signals change over time

Power Measurement

Power Measurement (21)

The measurement of power and power quality includes basic parameters of voltage, current, watts (kW, VA, VAR) or energy (kVAh, VARh, kWh)

Micro-Ohmmeter / Milliohmmeter / Megohmmeter

Micro-Ohmmeter / Milliohmmeter / Megohmmeter (12)

Micro-Ohmmeters, Milliohmmeters, and Megohmmeters measure resistance in different ranges and applications

Phase and Rotation Meters

Phase and Rotation Meters (4)

Phase Sequence and Motor Rotation Testers determine the phase rotation of energized circuits and the rotation of motors

Ground Testers

Ground Testers (8)

Ground Testing Instruments offer a comprehensive solution to ground rod resistance and soil resistivity (4 point) requirements

Voltage / Continuity and Non-Contact Testers

Voltage / Continuity and Non-Contact Testers (27)

Voltage and Continuity Testers and also Non-Contact Voltage and Current Detectors are some of the most basic electrical circuit testing tools

Electrical Parts and Products

Electrical Parts and Products (3)

GFCI Receptacle Testers and Line Splitters/Separators

Wire Tracers / Circuit Breaker Tracers

Wire Tracers / Circuit Breaker Tracers (8)

Wire Tracers, Circuit Breaker Locators, and Circuit Identifiers are basic electrical tools to verify power presence and troubleshooting

Thermal Imagers

Thermal Imagers (1)

Thermal Imagers are used to capture infrared images in applications ranging from industrial, fire, law enforcement, hunting and more


Thermometers (65)

Thermometers are temperature measuring instruments. Two main categories are contact type and infrared

Process / Calibration

Process / Calibration (22)

Process Calibration Equipment refers to test equipment used to calibrate process instrumentation, particularly temperature, pressure, and process signals (ex. Pulse, 4-20 mA, 0-10 VDC)

Power Supplies

Power Supplies (13)

Power Supplies deliver electric power to a device or circuit (Electrical Load), usually by stepping down a higher voltage

HVAC Equipment and Instruments

HVAC Equipment and Instruments (13)

TEquipment offers a great selection of HVAC Equipment and Instruments for the HVAC/R technician

Indoor Air Quality

Indoor Air Quality (10)

Indoor Air Quality, or IAQ, refers to the study, monitoring, remediation, and prevention of indoor pollutants and particles that cause discomfort and even health problems in homes and businesses

Environmental Testers / Physical Property

Environmental Testers / Physical Property (215)

Environmental Testers measure environmental elements such as humidity, air flow, temperature, water quality, and more

Borescopes / Boroscopes

Borescopes / Boroscopes (42)

A Borescope or Boroscope is ideal for non-destructive visual inspection of inaccessible areas

Reliability / Preventative Maint / Rotational

Reliability / Preventative Maint / Rotational (40)

Test instruments for Reliability Centered Maintenance (RCM) and Preventative Maintenance (PM) programs, such as for Rotating Equipment

Dataloggers / Data Acquisition

Dataloggers / Data Acquisition (43)

Dataloggers (or Data Logger, Data Recorder, Data Acquisition) refers to electronics designed to capture analog signals or measurements over time for study and review later

Light Meters / Illuminance Meters

Light Meters / Illuminance Meters (29)

Light Meters / Illuminance Meters measure the amount of visible incident light illuminates a surface from a variety of light sources

UV Meter

UV Meter (2)

A UV Meter is a tool for measuring ultraviolet irradiance. UV Meters measure the radiometric value of power of ultraviolet radiation

Gas Detection

Gas Detection (17)

Gas detection equipment sense the presence of one or more gases near the detector. Gas detection is used in a variety of industries and has a number of applications

Force Meter

Force Meter (10)

Force Gauges measure push/pull (tension/compression) forces

LCR Meters / Impedance Measurement Products

LCR Meters / Impedance Measurement Products (3)

LCR Meters, capacitance meters, impedance analyzers, inductance analyzers test components and materials in a variety of research and design applications and in component manufacturing

Thickness Gauges

Thickness Gauges (7)

Thickness Gauges meaure thickness, the distance between two surfaces of objects ranging from metals, glass, plastic, coatings, and more.

Distance Meter

Distance Meter (6)

Laser Distance Meters and Ultrasonic Distance Meters are terrific and affordable alternatives to a tape measure for distance measurements.

Decade Boxes

Decade Boxes (2)

A Decade Box houses several precision resistors, capacitors, or coils organized in decades of ten

Microwave Leakage Detector

Microwave Leakage Detector (1)

Microwave Leakage Detectors test ovens for microwave leaks

Datacom Testing and Telecommunications

Datacom Testing and Telecommunications (3)

Datacom Testing and Telecommunication Equipment covers a broad spectrum of test equipment such as IT networking, datacom cabling, and telcom networks

Automotive Test Tools

Automotive Test Tools (6)

While many test equipment can be used for automotive applications, manufacturers of test equipment have customized accessories and even specifically designed equipment for the automotive market.

Battery Testing

Battery Testing (2)

To meet the recommendations and requirements of the updated IEEE and NERC standards for battery systems, Battery Testing Equipment has been specifically designed to measure, record and archive your preventive maintenance program

Panel Meters

Panel Meters (5)

Panel meters display input signals from sensors measuring voltage, amperage, pressure, flow, and other variables


Accessories (195)

Extend the capabilities of your instrument or get genuine Accessories that fit your test equipment

Discontinued Products

Discontinued Products (900)

Discontinued Products Gone but Never forgotten.


Clearance (17)

New and Open Box Clearance items


Tools (1)

Tools are devices, often handheld, used by professionals and hobbyists to make their tasks easier and more efficient


Excellence In Technology

Extech Instruments was incorporated in 1970, and was acquired by FLIR Systems in 2007. They currently boast a broad array of Test & Measurement products, as well as a very strong distribution network. They are also currently one of the largest manufacturers and suppliers of test equipment and portable printers worldwide. Extech’s enviable reputation is built on innovative products that offer unique and patented designs with features, functions and reliability at an affordable price.


Test & Measurement Instruments

Extech manufactures and supplies 15 different types of advanced, portable meters. These include: multimeters, clamp meters, electrical testers, and environmental meters for the measurement of light, sound, temperature, humidity, airflow, RPMs, and water quality. Extech also provides products for the electrical, HVACR, construction, manufacturing, plant/MRO, process and automation, environmental, electronics/testing, and field service/maintenance sectors worldwide.

FLIR Infrared Thermal Imagers

As a FLIR-owned company, Extech is vital to the US distribution of FLIR Thermal Imagers. Through Extech, access to FLIR’s advanced thermal imaging technology has increased greatly through local and online US distributors.

Extech Product Line Overview Video: The Best Just Got Better


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