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The Fluke CNX™ 3000 Wireless Multimeter lets you work on electrical panels faster, safer, easier. Connect remote modules, view readings from a distance.

Locate underground utilities safely and accurately with the Fluke AF2082 A-Frame fault locator.

The Fluke GFL-1500 Solar Ground Fault Locator is a frontline troubleshooting tool that helps technicians quickly pinpoint active ground faults in solar photovoltaic (PV) systems.

Fluke 787 ProcessMeter combines a DMM and a Loop Calibrator in one rugged, handheld tool, for about what you would expect to pay for a loop calibrator alone.

Locate energized 50/60 Hz cables carrying current. Detects buried cables up to 20 ft deep.

Designed for electricians with a CAT IV 600 V rating, detects buried cables up to 20 feet deep.

320 x 240 resolution, fixed focus and IR Fusion. 3.5 inch LCD screen.

molbox2 Flow Terminal for gas flow meter and controller calibrations

Source, simulate 4 to 20 mA signals, and provide loop power

Fits CableIQ™ or MicroScanner™ kits

Locate potential mechanical problems in conveyors and partial discharges in electric grids.

Top-of-the-line ergonomics and a secure transmission of force.

Why choose the Fluke T6 Electrical tester? Read 9 things to love about the first electrical tester that performs AC current, AC voltage and frequency up to 1000 V AC without test leads.

Many facilities, such as power plants or production facilities, depend on a strong preventive maintenance program. These programs are essential to keep processes running safely and efficiently.

The need for true-RMS meters has grown as the possibility of non-sinusoidal waves in circuits has greatly increased in recent years. Some examples include variable speed motor drives, electronic ballasts, computers, HVAC, and solid-state environments.

Watch this video to how Fluke tools are supporting the future of solar energy, wind power and renewable energy.

Extend motor drive production performance, trend data over time and troubleshoot excess energy consumption. Compare the 438-II Power Quality and Motor Analyzer and the Fluke MDA-550 Motor Drive Analyzer.

Learn how to calculate air leakage and what that is costing you.

How safe is that voltage tester? Learn about the differences between solenoid and digital voltage testers, and how they impact your safety.

Even the smallest air leaks can compound product and energy waste and lost production time—especially for a production line that cannot function without compressed air to run its tools and processes.

Find out how air leak detection equipment prevents downtime for a 150,000 square foot plant that runs approximately 400 tools on compressed air, produced by a 200-horsepower compressor.

Voltage tester pens offer a quick and non-invasive method to detect live circuits. Understanding their operation, proper usage, and how they compare to tools like multimeters can help you choose the right instrument for your electrical tasks.

A guide to choosing the best electrical and voltage tester from Fluke for your needs. Built for electricians, maintenance managers, facility technicians and homeowners, learn about which voltage detectors in the Fluke VoltAlert line are right for you.

What is power factor and why is it important? Learn how to calculate the power factor formula, each component of the equation, and why it matters.

What is the difference between an insulation tester and a megohmmeter? Compare insulation meters, testers, megohmmeters, and meggers to learn about what's best for your needs.

We recently asked electricians what they considered their top 5 essential tools—there were a few ties, so we’re sharing their top 7.

Oscilloscopes sample signals as they change over time and then plot those signals on a display. The amplitude of the signal is plotted on the vertical axis and time is displayed on the horizontal.

The competition honors innovative products that increase efficiency and safety of mechanical and electrical installationsEVERETT, Wash., May 8, 2019 – The Fluke® T6-1000 Electrical Tester won the 2019 Best New Product Award in the Protective Tools, Hardware, and Equipment category at the Mécanex/Climatex/Expolectriq/Éclairage (MCEE) Show held in Montréal in April. The MCEE New Products Competition recognizes the most innovative products that increase the efficiency and safety of mechanical...

Insulated electrical tools are critical for electrical safety.

Insulated hand tools provide critical safety protection for electricians and technicians who work with live electrical equipment.

Learn how to improve power factor, including specific solutions for different root causes of poor power factor.

.w-100 { width: 100%; height: auto; } With a 50-year legacy of quality and reliability, set the standard for customer care.Learn more about our repair and maintenance servicesYour tools need regular maintenance and calibration to achieve and sustain the highest possible measurement reliability and accuracy. Each device deserves the best care to perform at its best.Trust us to provide timely, efficient, comprehensive support for your alignment or vibration equipment.Calibration servicesCalibration...

Sweepstakes Official RulesImportant: Please read these Official Rules before entering this Sweepstakes (the “Sweepstakes”). By participating in this Sweepstakes, you agree to be bound by these Official Rules and represent that you satisfy all of the eligibility requirements below.NO PURCHASE OR PAYMENT OF ANY KIND IS NECESSARY TO ENTER OR WIN THIS SWEEPSTAKES.Sweepstakes void where prohibited by law. Subject to applicable federal, state, and local laws.1. EligibilityFor purposes of the Sweepstakes,...

By Shannon Tymosko, Electrical Apprentice, IBEW Local 105It’s nearly impossible to see the benefits of a career path without clearly defined roles and processes. As an electrical apprentice and advocate for the skilled trades, I frequently attend career fairs and facilitate workshops where I see this confusion firsthand. Parents ask questions in an effort to help their children make a career decision, yet they often lack the background knowledge to know what information they need. I also have frustrated...

1. Discount Promotion DescriptionEligible customers who participate in this Social Media Influencer Discount Promotion (the “Discount Promotion”) during the Discount Promotion Period (as defined in Section 3) and meet all the requirements as set forth in these terms and conditions of the Discount Promotion are eligible to receive an annual discount as further described below.Under the Discount Promotion, eligible customers of Fluke Electronics Corporation, including Fluke Networks, Fluke Calibration,...

MET/CAL version 11.2.1 for MET/TEAM version 3.4.0 (.zip)MET/CAL version 11.2.1 Read Me (.pdf)This update is not for MET/CONNECT Customers. The MET/CONNECT version of this release is available here.Current MET/TEAM Customers:MET/CAL version 11.2.1 release is an update to previous MET/CAL software. This update includes bug fixes.Do not manually uninstall the previous version. If you do this before attempting to install this version, you may lose other information and files.If you have installed MET/CAL...

MET/CAL version 11.2.1 for MET/CONNECT version 2.2.1 (.zip)MET/CAL version 11.2.1 Read Me (.pdf)This update is not for MET/TEAM Customers. The MET/TEAM version of this release is available here.Current MET/CONNECT Customers:MET/CAL version 11.2.1 release is an update to previous MET/CAL software. This update includes bug fixes.Do not manually uninstall the previous version. If you do this before attempting to install this version, you may lose other information and files.If you have installed MET/CAL...

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90 percent of machine faults fall into four main categories: misalignment, imbalance, looseness, or bearing wear. Using root cause analysis can help you identify where a problem began and what caused it.

Calibrating a HART temperature transmitter requires an accurate temperature simulator or temperature source, mA measurement, and a HART communication tool for calibration. You can use separate tools or a calibrator that integrates all three to perform this task. HART is an industry standard defining the communications protocol between smart field devices and a control system that uses 4-20 mA wiring.Before going to the field, gather the needed calibration and communication test tools. If testing...

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Prepared by: Casey Rombouts, Senior Flow Metrologist — December 10, 2025AbstractThe legacy Hagen–Poiseuille–based method used gas‑ and range‑specific coefficients that were historically effective for achieving good performance in each gas, but these coefficients were not directly linked to underlying physical models (geometries, gas properties etc), which limited the ability to fully document uncertainty and traceability. The new NIST physics‑based model implemented in the Fluke molbox2,...

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Calibrating a thermometer seems straightforward on its surface, but in industries where precision matters and thermometers are more sophisticated to handle these demands, the stakes are high. Whether you’re using thermometers in pharmaceuticals, aerospace, or food safety, reliable calibration ensures accurate temperature measurements and compliance with critical standards.While simple methods like the ice water or boiling point techniques can help for some basic calibration applications, they aren’t...

The 4-20 mA current loop is the most widely used analog method for communicating and transmitting measurement signals in the world of industrial instrumentation and process control. It’s simple, reliable, and effective for transmitting sensor data over long distances and is a key component of troubleshooting and calibrating process systems.But what makes it so effective? Let’s explore the fundamentals that underpin the 4-20 mA current loop, including Ohm’s Law, key components of the loop, the...

When your work depends on precision instruments, performance and reliability are non-negotiable. Whether your equipment needs recalibration, servicing, or a repair, getting a quote should be straightforward. If you’re using Fluke tools, it is.This guide walks you through exactly how to request a quote for Fluke calibration services, repair services, or recalibrations. Then, we’ll dive into why servicing matters, what’s included, and what sets Fluke apart from other providers.How To Request...

The International Temperature Scale of 1990 (ITS-90) is a global standard for temperature measurement, providing a practical framework that approximates the theoretical thermodynamic temperature scale. Developed to replace earlier scales like the International Practical Temperature Scale of 1968 (IPTS-68), ITS-90 ensures consistency and accuracy in temperature measurement across industries.This standard was introduced to address the growing demand for a reliable and reproducible temperature scale...

Measurement uncertainty is a critical calculation in the calibration process. Many calibration laboratories must report it to customers to maintain compliance with quality standards such as ISO 17025. But more importantly, without an accurate, reliable sense of a measurement tool’s uncertainties, users risk signing off on systems that might be unsafe to operate — something that can quickly become dangerous, especially in industrial operations, like oil refineries.That said, calculating measurement...

Uncertainty analysis is a critical step in calibration that sheds light on the accuracy of any measurement tool. As such, it can be critical to understanding the true performance and health of whatever components or systems a measurement tool is testing. In this article, we’ll review how uncertainty analysis relates to calibration, why it’s important to a proper calibration process, and how to set your calibration services up with a good uncertainty analysis process in mind. What Is Uncertainty...

In every industry, from petrochemical refining to aerospace manufacturing, accurate measurements are essential for operational safety, efficiency, and quality assurance. However, no measurement is free from uncertainty (that is, the statistical degree of confidence in how close a measurement is to its true value). Whether assessing temperature fluctuations in a reactor or calibrating critical instruments, understanding the different types of uncertainty is crucial for making informed decisions.This...

Thermocouples are incredibly useful and simple tools for measuring temperature. There are many varieties of thermocouples and they can consist of different metals. Despite this variety, all thermocouples ultimately do the same thing: generate a voltage corresponding to the temperature difference between two junctions. (An instrument, like a multimeter, then measures this temperature difference.) However, when it comes to taking precise temperature measurements, this measurement and conversion process...

How to measure current with a digital multimeter plus clamp accessory.

Variable-speed motors and drives are normally much more efficient than fixed-speed types, but even they don’t always work at peak efficiency. An analysis of VSDs at one drinking water pumping station helped save over 20% of energy costs – repaying many thousands of Euros every year.Load measurement at input and output of a VSD The main energy cost for water companies comes from pumping water up from the well and through the network. Variable-speed drives match output to demand and so help minimize...

The most important step in any measurement process is setting up your measurement device correctly. Do this incorrectly and you can find out your data is useless after a measurement cycle of days or weeks. That means starting all over again—if you can.

How to diagnose a high voltage surge arrester with a Fluke thermal imaging camera.

Learn why on all current clamps and current clamp accessories, there is an arrow placed close to the beak or inside the beak opening.

There are many ways to prioritize assets when developing a proactive maintenance plan—the most common uses criticality analysis. That is, the assets with the greatest potential for impacting the bottom line are higher on the priority list, while those that have little-to-no impact are on the bottom of the list.Since compressed air systems are integral to operation up time, they would likely be very high on the list. That means that there is a direct correlation between the compressed air system...

It is an undeniable fact that frequency inverters provide the most benefits of the many methods of controlling induction electric motors. However, in some cases the use of a frequency inverter can have a negative effect on the motor. One of the causes of damage to electric motors due to the inverter effect, happens when the power cable between these two devices is too long. But why?The output of the frequency inverter is characterized by a PWM signal (Figure 2). Considering this signal, we will observe...

With all Power Meters, Power Quality Analyzers, Energy Loggers or Power Loggers you can measure quite a number of Power parameters. In fact, the number of variables these instruments can measure, log and store is in many cases overwhelming. Imagine yourself setting up, downloading and analyzing a 32GB file with a logging of 500+ parameters over a month period…..So, wishing for “I want to log everything” is in most cases not the best idea, and certainly not the most efficient way. This leaves...

Power Quality loggers are often placed in the field for long periods, so most don’t have a display. Besides attracting attention and so increasing the chance of theft, a display is simply not needed as you don’t normally use a logger for troubleshooting. Successful analysis is therefore all about gathering data.Somehow, you need to communicate with the logger. You need to tell it what and how to measure, and then download the data. With no display, a logger’s communication links are critical,...

When you perform an energy or power quality survey you need to measure days or weeks of data, imagine the disappointment if when you return to the logger after that time you discover that you have failed to capture the correct measurements. The support teams at Fluke all too often get calls from users who don’t understand the measurements they have logged, usually they think the instrument is at fault. Usually though the problem is due to the user making a connection error, this can be due to incorrect...

Automotive customers have zero tolerance for bad parts and therefore, electric motor maintenance needs utmost care. One of our customers, CNP Myszkow, coats small parts for the automotive industry. After dip spin painting, they heat-treat the parts in a tunnel furnace. This is divided into several areas, each with different temperatures. An electric motor drives a fan in each area to ensure stable temperatures since temperature stability relates strongly to final product quality. Any changes from...

Every process technician knows that the most difficult part about doing calibration in the field is getting all the hoses connected properly. Using the thread seal tape to seal up all the connections and having to take the time to reseal every time you perform calibrations. Not only is that time-consuming, but it could also lead to leak issues that throw off your measurements.In this video we're going to look at the best practices for doing a pressure calibration and what accessories, like fittings...

How to find the root cause of production line stoppage and reduce downtime in manufacturing.

Inspecting electrical utility substations and lines with thermal imaging. What to expect and what you might find.

How to protect yourself from the dangers of counterfeit Fluke products. How to ensure that you purchase genuine Fluke items and what to do if you believe you have.

When you have insight into the overall health of your asset portfolio, you can determine how best to allocate your resources. In the past, gaining that insight was a process in and of itself. Now, the Fluke Connect™ Condition Monitoring (FCCM) Dashboard gives you a concise view on a single screen.Leveraging FCCM data, the dashboard provides a snapshot of facility trends, recent alarms and activities, and the status of individual vibration sensors and power monitoring sensors. You can gauge the...

More than 40% of industrial motors work at or below 40% of their load rating. That means poor power factor and inefficient operation. Efficiency of all motors can drop over their lifetime, which increases energy and maintenance costs and can even increase plant downtime. Monitoring drive efficiency catches the symptoms early.The four key power quality measures are:active (real, useful) power in KW,apparent power (complex, that you actually pay for) in kVA,reactive (imaginary, wasted) power in kvar,...

What is IEC 61000-4-30 standard?The IEC 61000-4-30 standard ensures that the measurement results from Power Quality analyzers and loggers of different makes and models match up; so measurement results are comparable without any doubts. This is extremely important, especially when there is a dispute about supply voltage quality between different parties going on. To comply with this standard, the instruments should measure and evaluate in exactly the same way. The standard covers PQ phenomena like...

Intermittent faults are notoriously hard to find. If you don’t know when they’ll occur, you need some form of data logging. But to track them down they have to be correlated to the events that cause them. You may also need to transfer the data remotely. So, measuring instruments should be versatile and intelligent with a wifi connection, and may need to read two external sensors.Overhead and underground utility cablesOne of our customers is an energy utility with extensive overhead and underground...

This comprehensive article gives information on the amount of training a thermographer should have in different industries, and what the better educational courses cover.

If you troubleshoot or maintain equipment in an industrial setting, staying safe depends partly on the environment and partly on you.

The quality of a thermal image is much more than just aesthetics. It is critical to pinpointing specific areas of concern. A simple way to look at it is: IMAGE QUALITY = focus + optics + spatial resolution (pixels + field of view)

Information on the role of thermal imagers in preventive maintenance programs, including cost savings, return on investment (ROI), and the inspection process. Included are common examples of infrared camera applications.

A thermal imaging program is a powerful tool in both preventive maintenance and when troubleshooting critical equipment; both of which can save time and money. Adding thermal imaging inspections is a huge upgrade in your ability to detect and fix issues before unexpected downtime occurs.Thermal imaging in your businessWorking in maintenance, you already have broad experience with many types of equipment and failure scenarios. Your experience, combined with a thermal camera and some basic training,...

By Justin Sheard, Fluke Acoustic Imaging ExpertIn the world of cleanroom environments, maintaining strict contamination control is not merely a best practice—it is a regulatory and operational imperative. Whether supporting pharmaceutical manufacturing, semiconductor fabrication, medical device assembly, or aerospace component production, cleanrooms must meet exacting standards for air cleanliness, pressure differentials, and environmental stability.A pharmaceutical manufacturer operating ISO Class...

Seeing a motor’s heat signature under normal operating conditions—with at least 40 % of design load—can tell you a lot about its condition.

Learn how to choose the right IR lens for your thermal camera and why germanium is used in thermal camera lenses.

Using a multimeter that provides the right measurements is important. Knowing what those measurements mean is even more important. Accuracy and precision ensures the measurements you take will be useful; higher precision enables easier repeatability and higher accuracy means the your readings will be closer to perfect.Looking for a multimeter recommendation? Adam Savage from MythBusters has a few you might be interested in. Read the article and watch the video for details.What is the Accuracy of...

The arc flash boundary is the minimum “safe” distance from exposed energized conductors or circuit parts that has the potential for an arc flash. The required arc-rated clothing and PPE increases rapidly as a worker approaches the potential source of an arc flash

Arc flash vs arc blast. When an arc fault occurs, the result is a massive electrical explosion. The light and heat emitted by the explosion is known as the arc flash, and the pressure wave is known as the arc blast.

Compare IP rating, battery life and other features. What is the difference between the Fluke 87V MAX and the 87V digital multimeter?

Take digital multimeter safety precautions to handle the conditions found in your work environment. Understand multimeter CAT ratings and ingress protection (IP) codes.

This article demonstrates how to detect the 13 most common causes of winding insulation and bearing failure in advance.

Watch an overview of Fluke’s PTi120 handheld compact thermal camera key features and ideal use

Read the wastewater plant case study on how the Fluke 3540 Power Monitor paid for itself in five months by eliminating the need to use contractors.

The electrical power issues that most frequently affect industrial plants include voltage sags and swells, harmonics, transients, and voltage and current unbalance.

Video transcript:Hey, I’m Sean with Fluke. A question we often hear is: “Why do I need an insulation tester?”The insulation tester is designed to:check the integrity of your conductor wirescheck the insulation value of motor or your compressor windingsYou’re trying to see if there’s any break down that could potentially cause a fault. We always want to use an insulation tester and your Preventive Maintenance Plan (PMP). This would allow you to start doing streamline testing and baseline...

By: Jacek Karpol-Nawrocki and Christian Beham, Professional Service Managers at Fluke ReliabilityFluke Mobile is a software application optimized for mobile workers using the IBM Maximo EAM platform. By integrating Fluke Mobile with your Maximo system, you enable maintenance teams to respond to corrective maintenance requests and work orders in a single workflow on a tablet or smartphone.The seamless integration of unplanned and planned maintenance requests on a mobile device helps organizations...

Knowing the value of inrush current helps technicians locate startup problems

Consider investing in these five electrical troubleshooting tools to quickly identify basic electrical issues in HVAC, networks, motors, and electrical panels.

Fluke multimeters tested by Adam Savage. Trusted tool recommendation for budget multimeter review.

Measuring ac current with a clamp meter’s jaws. Note: Current flowing in opposite directions cancels each other. If current is moving in opposite directions, place just one conductor within the clamp during measurement.

How to LOTO a PV system. Guidance for electrical safety in solar power plants, PV installation and solar panel safety considerations.

Learn how for some use cases, a telephoto, macro or wide angle lens can prove invaluable. Plus, find out why ‘smart lenses' are better than the alternative.

Importance of investing in battery storage systems health and maintenance.

Transformer infrared inspections can show you abnormal thermal overload patterns in cooling tubes which can be escalated for troubleshooting.

Grid connected photovoltaic systems are growing in importance as sustainable energy sources.The DC power of the solar panels is converted into an AC power by inverters. These are transformerless and, besides generating AC current, also inject a small DC Current. Excessive DC current injection into an AC network can cause problems like transformer saturation, however, which will cause additional losses and reduce transformer lifetime. For measuring these DC components, we need a Power Quality Analyzer...

Understand the effects of wind on thermography. Forced convection can come in the form of wind, a fan or even a pump, and the result of this forced convection will affect the target temperature.

By Justin Sheard, Fluke Acoustic Imaging ExpertIn the competitive world of white goods manufacturing, ensuring product quality and reliability is vital to reducing warranty claims, avoiding costly recalls, and safeguarding brand integrity. From washing machines and dishwashers to refrigerators and heat pump dryers, these household appliances must be thoroughly tested for leak tightness and structural integrity during in-line and end-of-line (EOL) production processes.In white goods manufacturing,...