In this blog, we will tell you everything that you need to know about the best digital multimeters that you can buy from OEM Secrets today. This article goes into detail on what a digital multimeter does and why it’s such an important product for field technicians and electrical professionals to own.  

We will also be touching upon these areas too:   

  • How each product measures up physically
  • The core features that differentiate each product
  • How it performs when compared to other similar items
  • The good points and bad points of each product
  • How our customers have responded so far to the items

What’s more, be sure to keep refreshing as we provide updates whenever new products from this range hit the production line. So, with all that being said, let’s take a closer look at the best digital multimeters! 

What is a Digital Multimeter? 

The best way to describe a digital multimeter is to note its uses as a measuring appliance. They can measure the likes of voltage levels, current levels and resistance levels. Furthermore, a digital multimeter has a physical display in digital form which allows anyone to clearly read the figures. Note that voltages are measured in volts, while currents are measured in amps and resistance is measured in ohms. This is specifically designed for those working within electrical industries, and therefore it should be easy for electricians to quickly adapt to using digital multimeters for their line of work … 

1. MN62-K 

The first digital multimeter that we want to mention is the MN62-K, a product that comes courtesy of Extech Instruments. Now, the MN62-K has numerous functions: it includes an AC/DC current, AC/DC voltage, capacitance, continuity, frequency and resistance tools within its make-up. This digital multimeter has 3.75 digits, and its DMM response type is a true RMS style. It has up to 4,000 displays, which is a suitably large amount for such a high-quality product. It can operate on both a manual and an automatic operational level, and it is RoHS compliance, so you know that it’s as safe as any digital multimeter could be. And there is plenty of choice when buying this product from OEM Secrets; an example is to buy the MN62-K digital multimeter for £60.31 via Arrow Electronics and Mouser.  

What's special about this MN62-K multimeter? 
It's a compact True RMS multimeter and includes a free Non-contact Voltage Detector (NCV)! Ideal
for troubleshooting appliances, electrical wiring, automotive repair and electronic devices. You can safely determine if wires are hot or not using the voltage detector that comes free with them.


DMM: AC/DC Current, AC/DC Voltage, Continuity,
Capacitance,Continuity,Frequency, Resistance 
Current AC Max: 600A 
Voltage AC Max: 600V 
Voltage DC Max: 600V 
Resistance Max: 400ohm  

2. D03124 (Best value)

Another example of a top-level digital multimeter is the D03124, which has been developed by Duratool. This product has similar functions, but alongside the AC/DC current, AC/DC voltage, resistance, frequency and continuity, this item also includes a diode tool. The D03124 is slightly more limited in comparison to the MN62-K in that it has 3.5 digits and it has a maximum of 2,000 displays. But it has a maximum voltage measure of 600V, and it offers automatic functionality as well as once again being compliant with RoHS guidelines. Last but not least, this particular digital multimeter is much more cost-effective to purchase from OEM Secrets, with the cheapest option being to buy it for £10.86 courtesy of Farnell. 
What's special about this D03124 by Duratool? 
It has overload protection with a  Spark Gap used to protect that the voltage over 1500V and has K-type Temperature Probe.  


DMM: AC/DC Current, AC/DC Voltage, Continuity,
Diode, Frequency, Resistance 
Current AC Max: 100A 
Voltage AC Max: 600V 
Voltage DC Max: 600V 
Resistance Max: 2Mohm  

3. MM750W

If you want to look for alternatives to the MN62-K and the D03124, though, then why not take a look at the MM750W. This digital multimeter has been developed by Extech Instruments, and it has the largest number of DMM functions of any of the listed products so far. This means that it covers AC/DC current, AC/DC voltage, continuity, capacitance, resistance, diode, temperature and frequency. We’re back at 3.75 digits for this particular item, and it also has a true RMS style of DMM response type. The display count is also the largest so far, with 6,000 in total, and it is RoHS compliant as well. On top of all that, we have a wide range of distributors working with OEM Secrets to sell this high-quality digital multimeter, with the cheapest option for the MM750W being £80.70 via Transfer Multisort Elektronik and Farnell. 

What's special about this MM750 digital multimeter? 
It can be used on both CAT IV-600V, CAT III-1000V safety category and comes complete with test leads, general purpose Type K bead wire temperature probe, Wireless Datalogging Module, and has a Bluetooth Datalogging module that transmits readings to iOS® and Android™ devices for remote viewing using the free app and can record 15k readings. 


DMM: AC Current, AC/DC Voltage, Capacitance, Continuity
, Diode, Frequency, Resistance, Temperature 
Current AC Max: 10A 
Voltage AC Max: 1kV 
Voltage DC Max: 1kV 
Range Selection: Manual 
DMM Response Type: True RMS 
Resistance: 60Mohm  

4. 388B

If you’re looking for something that is somewhat stylish and a little easier on the eye, then we have to bring up the 388B. This digital multimeter has been developed by the well-renowned B&K Precision, and amongst its DMM functions, the 388B has AC/DC current, AC/DC voltage, resistance, continuity, capacitance and frequency. The product does have an average DMM response type, which may be a factor to consider prior to a purchase. But it does also have 3.75 digits as well as having a display count of 4,000. Furthermore, this digital multimeter has a manual range selection as well as being RoHS compliant.
Finally, the 388B has a whole host of distributors serving OEM Secrets, with £111.08 being the typical price to pay across the board.  

What's special about this 388B multimeter by B&K Precision? 
The 388B has an input impedance of 10Mohms and design-wise it has a double injection molded case that provides improved grip and protection for the meter. 


DMM: AC Current, AC/DC Voltage, Capacitance,
Continuity, Diode, Frequency, Resistance 
Current AC Max: 1kA 
Voltage AC Max: 750V 
Voltage DC Max: 1000V 

5. Fluke 115 

We’re finishing off with the Fluke 115 digital multimeter, a compact true-RMS multimeter for professional filed service technicians. a product that has also been developed by Fluke. The full range of DMM functions are AC/DC current, AC/DC voltage, resistance, capacitance, frequency and continuity. Meanwhile, it has a hand-held DMM type to differentiate it from the other aforementioned products. Otherwise, though, it shares traits with the other mulitmeters mentioned above, it has surge protection of 6 kV peak per IEC 61010-1 600 V CAT III, and a fuse for A input 11 A and a digital display of 6000 count which updates 4/sec.  As for how much this digital multimeter costs when purchasing it from our team here at OEM Secrets, you can expect to get the Fluke 115 for £149.59 from such distributors as Jameco, Ralph's  industrial electronic supplies and TME. However, you may wish to look around our distributors, as the more third-party sellers that come on board to distribute this item, the more money that you’re likely to save in the long-run. 

What's special about this 390A multimeter? 
The Fluke 115 is the solution for a wide variety of electrical and electronic testing applications. What we like about this superior 115 version is it measures 10 A with a 20 A overload for 30 seconds and is CAT III 600 V safety rated. 
This multimeter can be bought with additional addons like the Pomona 5673B Electrical DMM test lead kit and is also compatible with an optional magnetic hanger (ToolPak™) 


DMM: AC Current, AC/DC Voltage, Capacitance, Continuity,
Diode, Frequency, Temperature Resistance 
Current AC Max: 10A 
Voltage AC Max: 600V 
Voltage DC Max: 600V
Resistance Max: 40Mohm  

Factors to consider while buying a  digital multimeter:   

  • Digital Multimeter specification
  • Accuracy
  • Resolution
  • Input Impedance
  • Frequency measurement
  • Energy capacity
  • Temperature measurement


These are just some of the multitude of digital multimeters that we have available here at OEM Secrets. As you can see, each of them stands out in their own way when offering the services that you would expect. So, make sure to look closely at the feature set of each item in order to pick the right digital multimeter for you and your project. And also don’t hesitate to provide us with feedback for any others that catch your eye. In the meantime, you can check out our full range of digital multimeters at  

Send us some feedback and we’ll keep adding to this list.   

Author: Mark Armstrong
Published: February 28, 2022