Extech Instruments

Model # MA620-K

Internet # 203491520

Industrial DMM/Clamp Manual Meter Test Kit

$157.46 /each



Model # MA620-K

Internet # 203491520

Industrial DMM/Clamp Meter Kit includes an MA620 TRMS 600-Amp AC Clamp Meter with built-in non-contact-Voltage detector. An EX505 industrial grade, category IV-600-Volt, 11 Function D mm that's waterproof (IP67) and drop proof (6 feet). Complete with test leads, Type K thermocouple bead probe with banana input adapter, and a magnetic hanging strap for the multi-meter. Supplied in a CA900 soft carrying case that provides protection and organization for the meters and accessories.

  • CAT IV multi-meter, true RMS clamp meter with integrated AC-Voltage detector
  • Includes EX505 - industrial grade, category IV-600-Volt, 4000 count display, waterproof, drop-proof, rugged multi-meter with true RMS functions
  • Includes MA620 – 600-Amp true RMS 6000 count AC clamp-on multi-meter with built-in non-contact AC-Voltage detector, test leads and temperature probe
  • Includes set of double molded professional test leads and magnetic hanging strap for the multi-meter
  • Includes type K thermocouple bead probe and type K to banana input adaptor

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.


Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Audible Alert 
Auto Ranging 
Category Rating 
Control Type 
Data Log/Record 
Data hold 
Display Type 
Dual voltage indication 
Integral lead storage 
Interchangeable leads 
Noncontact detection 
Number of Functions 
Number of Ranges 
Product Weight (lb.) 
1.5 lb 
Reference Scale Included 
Test Meter Type 
Tools Product Type 
Test Meter 
Vibration Alert 
Visual Alert 
Voltage (volts) 
Warranty / Certifications
Manufacturer Warranty 
1 Year 


Test Meter Type: Clamp/Multimeter
Brand: Extech Instruments
Price: $150 - $200
Review Rating: 4 & Up
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 48ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;


Rated 4.9 out of 5 by 30 reviewers.
Rated 5.0 out of 5.0 by Great combination of dmm and clamp meter! This meter set is a great value for what you get, I needed both types so this was perfect for my needs. I like that it comes with a soft case, and 3 sets of probes. One thing I like about the DMM is the large size of the display, making it very readable. As for the clamp meter, I appreciate that the clamp opens up wide enough to get over most wires. It's also not too thick so you can get it into tighter areas. The meter reads true RMS, so you know you're getting an accurate reading. March 17, 2016
Rated 5.0 out of 5.0 by High qualtiy great value meters These are excellent meters, They come in a nice carrying case and both the amp and voltage meters have a ton of features and settings to test various circuits and components. The Amp meter has a nice Line voltage non contact light that lets you know which lines have power with out touching them. The housings on both meters have a nice grip and sturdy feel and should last several years. I do like the thermocouple features on both units that lets you view temperatures in real time with a decent accuracy. If you are looking for a great value meter set then you should not pass this by. November 11, 2014
Rated 5.0 out of 5.0 by Great Set, Great Value I'm not a professional or an electrician or anything fancy. I'm just your average DIY homeowner. This product appealed to me because on multiple occasions I had an issue with a faulty power switch that resulted in an unnecessary call to an electrician to see if there was power or not. The electrician used an item very similar to this so I figured why not? Best features: - Pretty comprehensive set for the money (Complete set with everything you need- no extra cost associated with add on parts) - Relatively straightforward to use. The instructions weren't totally helpful, but I was able to find a few videos. If you have any familiarity with these, should be easy to use. As a total novice, it wasn't impossible. Great value for money and a really nice set for a homeowner. Has already paid for itself. Recommend! January 9, 2016
Rated 5.0 out of 5.0 by Ready to go out of the box! The meter was ready out of the box, but it took me two intro videos to learn how to correct use the meters. I have used small meters in the past. This is a quality unit I'm proud to add to my tool box. October 29, 2014
Rated 5.0 out of 5.0 by A full and complete Industrial kit. The Extech test kit contains two full and complete test meters with all associated accessories, such as test leads, probes, adapters, and hang strap. And it all fits into a single zippered pouch/case. The meters themselves are industrial, so are waterproof and ruggedized. Large, easy-to-read displays; responsive buttons; loads of features. These models are the higher-end models of the line-up. (The only thing these don't have is wireless technology like Bluetooth.) They both use 9V batteries and require a screwdriver to change. (Wish it was the more-common AA with tool-less change.) The clamp meter is a True RMS clamp with non-contact voltage detector (very useful). Easy-dial thumb control for selecting functions. The multimeter is also True RMS with test leads that connect easily. Just dial the function you need. Has a stand, probe-holder and attachable strap. The kit comes with two manuals that are well-written and allow you to easily find the function you need. After a few uses you will have it figured out. The manuals are really thick because there are 6 languages in at least one of the manuals. I wish they were all separate so I can throw away the languages I don't need. Also I wish there was a place to put the manuals in the case; I have to set them on top of the meters. Finally, there's extra room in the case for other accessories. I plan to add some immersion probes and such. This is the best kit that Extech has. So if you want to obtain a single kit with the better industrial meters all in one carry-case, this is it. February 8, 2015
Rated 4.0 out of 5.0 by Electrifying Value Overall both of these meters are quite good. I do wish that the documentation was a bit better as nowhere in the manual or online I was able to find exactly how they want you to use the magnetic holder. I am sure I will find a way I like to rig it up but it is ceirtainly not as clear or easy as some of the leading competing products. The meters are provided in a nice case and with a set of leads and temp probe for each meter so they can go off on their own. The clamp meter has a built in non-contact voltage detector which is always nice to have handy to make sure that there is in fact no power in whatever you are about to touch. One thing I did not like is that the temperature probe has some very odd accuracy properties. Basically, as far as I can tell, the reading will always be offset by a 9 deg F in addition to the +/- 3% error. I put a picture of the manual along with this review so you can see for yourself. November 22, 2014
Rated 5.0 out of 5.0 by Very nice meter set. Easy to use. Accurate. I put these meters through their paces and my conclusion is that overall, this is a very nice set of testers. The meters are fairly easy to use and the readings they gave were accurate. Batteries came preinstalled, allowing for use of the meters as soon as I removed them from their box and soft case. Each meter features a large LED display that is easy to read, even in low light due to backlighting. A rubberized exterior case provides for a positive grip and is ruggedized against accidental drops and damage. The K-type test leads and temperature probe fit snugly into their respective receptacles on the digital multi multimeter (DMM) and don’t accidentally fall out during use. The included nylon carrying case serves to keep the meters and accessories neatly organized and protected against damage during travel and storage. As a firm believer in safety and the use of proper tools for the job, especially when it comes to anything electrical, this kit is a must-have for any electrician, contractor, home inspector, or DIY homeowner as it allows you to quickly and safely determine if electrical wires and receptacles are live, as well as to troubleshoot problems. By troubleshooting problems myself, I have saved thousands of dollars by not having to hire a professional. The AC clamp meter allows you to safely test high amp electrical wires (up to 1-1/2 inch diameter), without contact, to determine the presence of voltage, while the DMM is able to tests for basic capacitance (amps, volts and ohms), temperature, frequency and continuity. The clamp meter allows you to quickly take a measurement of the current being induced through a wire without interrupting the circuit. Use of the clamp meter however, relies on direct access to the wire. More often than not, I don’t have access to the wire, such as in the case of underground wires or wires buried in a wall, but with this kit, I can still test the for current at the power supply, receptacle, or a fixture with the included DMM. While the clamp meter will give quick results, I find that a direct read via the DMM is more accurate. Typically, for high amps, you can’t use a DMM. This DMM is rated for 10 amps, but will handle applications up to 20 amps (for 30-secs). The knobs on the DMM and clamp meter are large and click positively into position with symbols that are easy to comprehend and buttons that feel solid when you push them. The DMM has a magnetic hanger so your hands are free to work and, after some period of non-use, both meters will automatically shut off to conserve battery life. The meters, and especially the DMM, is larger than I’d like for it to be, but I suppose that means they won’t get left behind at the job site or lost in my toolbox. Also, the DMM continuity beep sometimes sounds as if it’s straining or is unsure of itself, and the test leads are a bit short so you need to be close to your work. Minor quirks aside, these meters are quite capable of doing anything the more expensive meters can do, and are a very good value for the money. As a kit, there is a bit of cost savings benefit over purchasing the meters individually. IMO, the quality of meters in this test kit are on par with meters costing more than twice the price and should be a part of every toolkit. January 20, 2015
  • 2016-05-26 T17:02:58.543-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_30, tr_30
  • loc_en_US, sid_203491520, prod, sort_default
2 >>
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 37ms