Klein Tools Digital Multimeter-MM200 - The Home Depot

Klein Tools

Model # MM200

Internet # 202521267

Store SKU # 362812

Digital Multimeter

Klein Tools Digital Multimeter

This item has been discontinued.
The Home Depot no longer carries this specific product.

$48.97 / each


Model # MM200

Internet # 202521267

Store SKU # 362812

The Klein Tools Digital Multimeter is a helpful device to have if you are looking to achieve accurate voltage readings. It features a backlit LCD display that is easy see readings and will shut off after a set amount of time in order to conserve energy. The internal range automatically adjusts to offer you improved readings.

  • Measures voltage and indicates DC polarity
  • Low battery indicator
  • Data hold feature saves measurements for later viewing
  • Audible Alert
  • Auto shut-off feature extends battery life by conserving power
  • CAT rating - CAT III 600-Volt
  • 9-volt battery included

Info & Guides

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Assembled Depth (in.)  3.5 in  Assembled Height (in.)  9.25 in 
Assembled Width (in.)  6 in  Product Depth (in.)  1.75 in 
Product Height (in.)  5.75 in  Product Width (in.)  2.75 in 
Audible Alert  Yes  Auto Ranging  Yes 
Backlit  Yes  Batteries Included  Yes 
Battery Charger Included  No  Battery Power Type  Alkaline 
Battery Size  9-volt  Case Included  No 
Category Rating  III  Control Type  Manual 
Data Log/Record  No  Data hold  Yes 
Display Type  LCD  Dual voltage indication  No 
Handheld  Yes  Integral lead storage  Yes 
Interchangeable leads  Yes  Low Battery Indicator  Yes 
Measures  Voltage  Noncontact detection  No 
Number of Batteries Required  Number of Functions  11 
Number of Ranges  35  Product Weight (lb.)  0.5225 lb 
RMS  No  Reference Scale Included  No 
Returnable  90-Day  Test Meter Type  Clamp/Multimeter 
Tools Product Type  Test Meter  Type  Multimeter 
Vibration Alert  No  Visual Alert  Yes 
Voltage (volts)  600 
Warranty / Certifications
Manufacturer Warranty  This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. This warranty does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect, or improper maintenance. 


Rated 3.7 out of 5 by 23 reviewers.
Rated 2 out of 5 by Jumps all over I manly use it to test ohms and I use it for testing anywhere between 2.0 - 0.5 ohms and it shows me 28.0 ohms?! I have to reset several times and even then, only because I know approx what it should measure am I able to tell what ohms it is. when trying to figure out the internal reading I need to subtract afterwards it just keeps jumping all over the place. I tested it with a known source and found that it is approx 0.2. It works well for voltage readings but for ohms and sub-ohms not so much. April 26, 2014
Rated 5 out of 5 by **Correction to my previous review*** Previously I submitted my comments about intermittent readings and the unit having a mind of it's own. I wanted to retract and correct my review. I suspect 'Photoray' had the same issue as me for the following reason. Check to make sure that your probes are FULLY INSERTED into the unit. When installing them initially I stopped pushing as soon as I felt back pressure thinking they were all the way in. It's quite deceiving actually. When you get to this stop apply more pressure until you actually feel the connectors 'pop' into place. I feel a bit sheepish for not realizing this after 2 units but again as stated, it's quite deceiving how the probes actually sit in the connectors in the unit. It now works flawlessly, accurately and is another great product by Klein! March 11, 2014
Rated 5 out of 5 by Does what I needed it to Wanted a DMM to use on our new RV measuring both AC and DC voltages and amperes. I'm able to monitor battery state of charge and power consumption by the various appliances, lights, etc. 12 volt battery management is very important when camping without hookups and this DMM gave us valuable insights into our RV's operation. August 21, 2013
Rated 3 out of 5 by It's a good meter but..... One of the reasons I bought this meter was that it could also read temps. We'll....it's about 10 degrees off! That is way,way,off for me! From what I have read in the instructions, there is no way to calibrate the temperature. When working on HVAC, accurate temp function is very important, so I was not happy about not being able to calibrate the temp. Other than that, this is a good meter if you don't use the temp function. All the other functions work just fine. September 11, 2014
Rated 1 out of 5 by Replaced twice only to get a second dud. The first one would not zero out for Voltage testing. Replaced with what looked like a newer version of the MM200. The first one had screw on caps that completely covered the B/W leads. The replacement had different caps that the leads were already exposed. The replacement would zero out but the accuracy of Voltage testing was intermittent. Sometimes it would read about .5 volts on a 120 v circuit. I would have to turn the meter off and on a few times to get it to read 120 v correctly. Replaced again and the same thing happened. I gave up on it. Home Depot was great about the return with no problems. I guess its true you get what you pay for. January 1, 2014
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