Klein Tools Digital Multimeter-MM1000 - The Home Depot
Message to Our Customers

Klein Tools

Model # MM1000

Internet # 202521270

Store SKU # 362878

Digital Multimeter

Klein Tools Digital Multimeter

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

$65.25 / each


Model # MM1000

Internet # 202521270

Store SKU # 362878

Klein Tools Test and Measurement line was exclusively designed from the ground up - by electricians for electricians. Based on years of field research, combined with extensive input from electricians across America, Klein's Multimeters were specifically loaded with the latest innovative, time-saving features. Klein Tools Test and Measurement products deliver.

  • Solid construction and rugged rubber boots
  • Data hold feature save measurement for later viewing
  • Bar graph responds quickly to changes in measurement
  • Max / Min / Relative reading for quick troubleshooting in the field
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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


Assembled Depth (in.) 
4 in 
Assembled Height (in.) 
10.25 in 
Assembled Width (in.) 
6 in 
Product Depth (in.) 
1.875 in 
Product Height (in.) 
7 in 
Product Width (in.) 
3.5 in 
Audible Alert 
Auto Ranging 
Batteries Included 
Battery Charger Included 
Battery Power Type 
Battery Size 
Case Included 
Category Rating 
Control Type 
Data Log/Record 
Data hold 
Display Type 
Dual voltage indication 
Integral lead storage 
Interchangeable leads 
Low Battery Indicator 
Noncontact detection 
Number of Batteries Required 
Number of Functions 
Number of Ranges 
Product Weight (lb.) 
0.875 lb 
Reference Scale Included 
Test Meter Type 
Tools Product Type 
Test Meter 
Vibration Alert 
Visual Alert 
Voltage (volts) 
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 4.5 out of 5 by 19 reviewers.
Rated 4.0 out of 5.0 by Functional and Safe Meter I'm an electrical engineer who does quite a bit of high voltage wiring for both home and work. This is the meter that I keep in the garage at home for basic troubleshooting for home wiring and auto wiring. The first thing I do when I get a multimeter is take it apart and look at the protection inside. This has all the features needed for a safe device. I really cringe when I see people use those $5 cheap Chinese on home AC wiring. Understand that a cheap meter can kill you. Use something like this that is protected well. I occasionally use this as an additional meter on my electronics bench, but it isn't quite up to the accuracy of my other meters. But that isn't its target. And at this price it is a decent and safe meter. September 5, 2014
Rated 4.0 out of 5.0 by Lot of meter for a reasonable price! This meter works well, comes with good information and user manual. It is well made, rugged and easy to read. The display is bright enough in the sun and large enough for older eyes. Accessories and test leads are well made; leads are pliable and sturdy. Clamps are strong. Its comparable to a Fluke, much less in cost. Good value! August 6, 2014
Rated 4.0 out of 5.0 by Accurate, Well Made and Easy To Use I've used MM1000 to test capacitors, resistance, ac/dc voltage, etc. The MM1000 is easy to setup, easy to use and extremely accurate. The backlight is evenly illuminated and bright. It weighs just under a pound and appears extremely well made. In short, I agree with the other positive reviews. I haven/t had to change batteries or a fuse yet but this isn't going to be an easy task. The protective orange boot surrounding the meter fits so snugly that its removal will take some time and physical effort. This may be due to the fact that the boot has never been removed and may ease up on subsequent removals but the initial removal will be a bear! I'd also like to see a compartment for onboard test lead storage. May 25, 2014
Rated 4.0 out of 5.0 by Great so far Marine technician and use multimeters frequently. Purchased this meter to replace malfunctioning meter and needed the same functions as my old one. I have been reading multimeter reviews so I had a good idea about the Klein meters. Fits in hand really good, comfortable to hold and lightweight. Selector switch is solid. Display is large and easily readable. Meter reacts quiet fast as I was testing it before leaving the store today. I opted out of the MM2000 as I really didn't need true RMS. I won't comment on quality as I haven't used the meter in the field yet but I don't foresee any problems. Meter does come with temp probe and nice set of test leads, however they are not very long. The only thing I dislike is that this item does not come with any spare fuses which I think should be a no brainer. If you somehow accidentally burn a fuse your meter is rendered useless until you get another fuse. July 20, 2014
Rated 5.0 out of 5.0 by Quality upgrade I upgraded from a cheap one that I had. I prefer this MM1000 because the LED lights up and the ohms setting has a tone generator. I already used this to diagnose a faulty heater coil in my electric dryer. I also use these to troubleshoot my riding lawn mower. It is nice to have this for use around the house. I would definitely recommend this one for you. April 13, 2015
Rated 5.0 out of 5.0 by Great for almost anything It's definately the best meter I've owned. It's very accurate, has autoranging and manual ranging, plus the max-min, and relationship functions are great. It's a little larger than I expected, about the size of a TI-84 (graphing calculator) and twice as thick. Not so large that it's annoying or inconvenient, but not small either. It is a little complicated at first, but after using it a little bit, it's very easy and fast. The "bar graph" isn't what I expected, it's just a single bar that changes, NOT a series of bars representing a changing signal over time like the bar graphs you usually see. The continuity buzzer is also a bit on the loud side. Bottom line is that you get what you pay for, and though it's not the cheapest or highest quality meter, it's perfect for most users. It's definately worth the price. October 6, 2013
Rated 5.0 out of 5.0 by This meter fills all my needs, and then some. As a former Aircraft Electrician having a good multi-meter was imperative. Since I have retired I have truly missed my multimeter, and all it's functions. The MM1000 by Klein tools has, as far as I can tell, all of the functions as the meter I used. I just replaced 8 thermostats in a gymnasium, and checking out their accuracy was a snap. Thanks Home Depot--Great meter June 12, 2012
Rated 4.0 out of 5.0 by Good meter for my purposes... As a homeowner that's not very 'electrical savy', this is a good unit for my purposes. Since I'm not an electrician, I had to do research on how to use the meter from an electrician beginner's perspective. (I'm fairly handy in other areas...) I did find videos and lots of weblinks. But I think if the mfgr. spent another $.50 on including such paperwork, it would have been convenient and more time saving. The cover is REALLY hard to remove to get to the betteries, though! May 28, 2013
  • 2015-05-23T10:55:22.594-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_19, tr_19
  • loc_en_US, sid_202521270, prod, sort_default
2 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.