Fluke displays uncommon understanding of technology in the manufacture, distribution and servicing of electronic test tools and software. In industrial installations, commercial applications, maintenance and service, Fluke tools have helped to keep many organizations and professionals in business. It has many manufacturing centers around the United States, with its headquarters in Washington.
The Fluke Industrial Multimeter ($404.33 – Manufacturer’s Suggested Retail Price) is designed to provide accurate voltage and frequency measurements on various speed motor drives and other electrically noisy equipment. It comes with an optional magnetic hanger that holds it up when your hands are busy. It has a large digital display for easy reading. Following are some of its other amazing features:
It comes with a lifetime warranty.
For over 65 years, Amprobe has made rugged measurement tools that have gone through various testing processes and been proven reliable. It received its first patent in 1950. Amprobe now makes over 500 products distributed to customers and resellers all over the world. It also maintains effective channels of communication to enhance customer feedback.
The Amprobe Electrical Contractor Multimeter ($72.73 – Manufacturer’s Suggested Retail Price) delivers non-contact voltage detection. With true RMS technology, it improves accuracy in electrically noisy environments. It is designed with the highest safety consideration. Its other features include the following:
Innova is a leading supplier of test equipment and diagnostic reporting tools for the automotive aftermarket. It has state-of- the-art facilities in the U.S and Canada. Innova pays good attention to research, and its technicians are ASE certified. Innova remains committed to customer service via its effective communication channels displayed on its website.
The Innova Automotive DMM ($74.85 – Manufacturer’s Suggested Retail Price) is designed to help pinpoint engine faults. It allows for hands-free testing and also has test lead holders. It comes with good body protection against sudden drops. Other features of this multimeter include:
This multimeter is U/L listed for safety and quality.
With over 45 years’ experience, Extech is one of the largest manufacturers and suppliers of handheld test, measurement and inspection tools in the world. Its tools are distributed in over 100 countries. Extech believes its success can be attributed to the support and dedication of knowledgeable distributors in the market.
The Extech Autoranging Mini Multimeter ($51.05 – Manufacturer’s Suggested Retail Price) delivers accurate measurements, has a large digit display and measures temperature and duty cycle. This multimeter has other fantastic features, including the following:
This multimeter is CatIII 600V U/L listed.
Mastech claims to be the world’s largest instrument manufacturer and the world’s leading provider of electronic measuring instruments. Through the adoption of technology, keen R&D, and knowledgeable professionals, Mastech makes quality products that are durable. It also has after-sales service to ensure customers remain satisfied. For inquiries, Mastech can be reached via its contact links.
The Mastech Digital Multimeter ($46.98 – Manufacturer’s Suggested Retail Price) combines a sound level meter, luxmeter and humidity meter. It has a backlit LCD screen. See some of its other features below:
This multimeter is safety certified.
Imagine that you had to measure the voltage, current, and resistance of a circuit to determine if they were accurate and that it actually didn’t require three different meters to do so. Yes, you read that correctly. Imagine that all you needed was just one electronic measuring instrument that could conveniently combine several measurement functions in one unit. Stop imagining because that is exactly what a multimeter does.
There are basically two types of multimeters and they are available in a broad range features. A multimeter, irrespective of its type primarily measures voltage in volts (direct and alternating), current in amperes (direct and alternating) and resistance in ohms. Some higher end models of multimeters are also capable of measuring frequency in hertz, capacitance in farads, and temperature in fahrenheit.
When it comes to testing various electrical appliances for issues, such as short circuiting of your extension cord or broken circuits in your electronics, a multimeter is the device of choice. With the help of different measurement functions, it can be used to check if your AA batteries are dead, if you’ve blown a fuse, check the voltage on your newly purchased power supply, measure the specification of your transistor, and much more.
Whether for commercial or do-it-yourself purposes, the value of a multimeter cannot be overstated. The aim of this review is to help you make the right choice of multimeter that is accurate and sensitive enough to measure basic units and extensive ones. If you are interested in detecting the possible sources of electro pollution in your home and measuring it to know how harmful it can potentially be, check out our review of the top EMF detectors available.
The cost of a multimeter primarily depends on the brand and the features that accompany it. Multimeters come in 2 varieties – bench mounted and handheld. Bench mounted multimeters are usually more expensive and more accurate than their handheld counterpart. Multimeters with advanced functions such as auto ranging, bar graphs, and audible alerts would cost more than those with basic functions.
Getting a good handheld multimeter with sufficient features may cost anywhere between $50 and $400, while those that are bench mounted could cost as much $1000. We decided not to feature cheap multimeters, as their accuracy and life span could not be assured, but within our featured price range, you can get a multimeter that is accurate and comes with the additional features that make them worthwhile.
Once you have decided to purchase a multimeter, there are several factors that must be considered to both prevent you from either getting an inadequate multimeter for your requirements and to make your selection far easier overall. Apart from the cost, the following are some of the factors that you should carefully consider:
There are two types of multimeters – digital and analog multimeters. Let’s take a quick look at them:
There is rarely any multimeter that is 100% accurate but it is necessary, especially for professionals, to get a multimeter that is as accurate as possible. A multimeter’s accuracy is always expressed as a percentage (%) of the reading produced and it signifies how close the measurement displayed is to the standard value of the measured signal. If a digital multimeter with accuracy of ±2% produces a reading of 100.0V, it means that it ranges from 98.0V to 102.0V. Therefore, when choosing a this useful tool, it would be better to select one with an accuracy rating closer to ±0.1 for better and more accurate readings.
Depending on the type, analog multimeters usually have a pointer, dial, or needle, as opposed to a number reading on the screen of digital options. Different values are indicated by the graded measurement which the dial possesses and the value measured on the dial is indicated by the needle. Multimeters also have a selector button that permits you to change its scale and function. You can find a jack or an opening that allows you to test devices by inserting leads. There are two leads that are typically found on a meter – red and black. A fuse and battery compartment may be found at the back or side of the multimeter. The fuse allows the multimeter to perform properly while charged batteries are required to power and continually run tests.
Multimeters with the auto ranging feature are usually digital multimeters and are more expensive but easier to use. The central knobs on this kind of multimeter have fewer positions. To use it, you simply switch to what you need to measure and allow the device produce the required measurement. This has several advantages over the manual ranging as you do not need to know each one of the resistance, voltage, current and capacitance values.
Safety should also be of primary importance, especially when dealing with circuits with voltage greater than 30-35V. Features such as inner blast shields, wide flanges, isolation slots, input protection, and shrouded banana plugs are found in some multimeters to ensure the safety of the user. Wide flanges prevent any form of slipping, while arc-over is prevented by isolation slots. The measurement category of the multimeter is very important and should be noted because mismatching the measured electric voltage with the multimeter can result to serious injury of the user and damage to the meter, or circuit. Please note that if your multimeter has been set to measure current, you should not, for any reason connect it to a voltage or battery source. Fuses are also present to protect the meter from damaging due to overloading of current on the maximum current range, rather leading to only the need of replaced fuses in the event of minor overloading.
There are some extra functions that are characteristic of high model multimeters and they include temperature measurement, rotation per minute measurement (RPM), decibel (dB), and microamps (mA) rating, data logging and acquisitions (DAQ), high input impedance, auto continuity, and graphs. Some multimeters have sleep mode that helps prolong battery life, a flashlight for measurement in poor light regions, carrying pouch for easy portability and transport, and a low battery indicator that notifies you when your battery is low in order to prevent interruption during measurement process.
If you do not want to be seriously injured or worse while using the multimeter, you must ensure that certain safety features are in place. It is of utmost importance to read the instructions carefully and ensure that the selector of the multimeter is at the correct position before you begin to use it. Failure to do so could damage the multimeter as well as the tested circuit.