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⚡ Power up your precision with Klein’s pro-grade MM420 Multimeter!
The Klein Tools MM420 is a professional-grade digital multimeter featuring auto-ranging True RMS technology for accurate AC/DC voltage up to 600V, current up to 10A, and resistance up to 50MΩ. Designed by electricians for electricians, it includes safety-focused Lead-Alert LEDs, a backlit LCD for low-light visibility, and rugged durability tested to withstand 6.6-foot drops. Its versatile functions cover temperature, capacitance, frequency, and diode testing, all packed in a compact, job-site ready tool with included accessories for immediate use.
| ASIN | B0B57PFFYX |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #5,259 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Multi Testers |
| Brand | KLEIN TOOLS |
| Color | Orange/Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (937) |
| Date First Available | June 27, 2022 |
| Display Style | LCD |
| Finish | Brushed |
| Global Trade Identification Number | 00092644693748 |
| Included Components | Digital Multimeter, TRMS Auto-Ranging, 600V, Temp |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.76 ounces |
| Item dimensions L x W x H | 9.33 x 5.08 x 3.82 inches |
| Item model number | MM420 |
| Manufacturer | Klein Tools |
| Material | Blend |
| Measurement Accuracy | 600V AC/DC |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 9 Volts |
| Part Number | MM420 |
| Pattern | Multimeter |
| Power Source | Battery Powered |
| Product Dimensions | 9.33 x 5.08 x 3.82 inches |
| Shape | Rectangular |
| Size | One Size |
| Special Features | Lead-Alert; Auto-Range; Min/Max Measurements; Backlight; Auto Power-Off; Data-Hold |
| Specification Met | Cat Iii 600v Safety Rating |
| Style | Auto-Ranging |
| UPC | 092644693748 |
| Upper Temperature Rating | 60 Degrees Celsius |
N**N
precise and reliable digital multi-tester for pros!
it’s incredibly reliable and easy to use. the auto-ranging feature makes measuring voltage, current, and resistance quick and accurate, while the clear digital display ensures readings are easy to read. the compact, sturdy design feels professional and durable, perfect for both job sites and home projects. overall, this multi-tester delivers precision, convenience, and durability in one essential tool. great battery life too!!
B**S
Very nice DMM for the money! Easy to use and has a wide range of functions!
This is a very nice DMM! Easy to use and has a wide range of functions. Great value for the money spent! Love it!
J**R
Nice Multimeter
I bought this Klein MM420 to replace a perfectly functional, 40 year old, Heath 2372 multimeter that I gave to my teen daughter for her electronics work (as I used it when I was her age). This Klein is nice! It's a rugged easy to use multimeter with all of the basics and a few bells and whistles. . It may not be a Fluke in decimal accuracy or its high price point (which is good because I have no use for either of those things) but it IS a Klein which is why I bought it.
B**N
Good multimeter
Worth it.
T**O
Not bad. A great meter for field techs or good back-up to a clamp meter
Not bad. Mid-tier capabilities with a great screen. Thinner than most full functional multimeters, side lead jacks allow for thinness, better portability without sacrificing safety or ability to change leads. As capable as my Fluke 117 but 1/3 the price and easier to pack. I would consider this to be the perfect back up to my Klein 810 Pro or for standalone use in a quick troubleshooting scenario. Nit picks include position of lead jacks right where my fingers hold the meter; lack of non-contact voltage sensing and a lack of a work light. Any two of those three would make it a 5/5.
J**.
Easy to use.
It is easy to use, not too complicated and perfect for the home owner. I have used it to track down a fault on a low voltage landscape lighting set and it proved to be a great tool to have. Very happy with the purchase and would buy again. It is also a great way to check GFCI outlets.
J**N
Good product at affordable price
Good product at affordable price
P**F
Best ever
I love this Multi meter compared to the others I’ve had over the years. Klein is the best and the features on this one are simple and user friendly, unlike the old Klein Multimeter I had. It has a bright display, it’s easy to read, has simple controls and functional, secure leads. Nothing not to like about this tool. Decent price compared to big box stores.
D**J
Rewelacyjny multimetr,polecam również dla początkujących.
C**N
Buen producto y fácil de usar.
A**A
Excelente
D**E
The Digital Multi-Tester with Receptacle Tester is an absolute must-have for anyone who works with electronics or does home repairs. It’s incredibly accurate and provides quick, clear readings for voltage, current, and resistance. The added receptacle tester is a fantastic bonus—it makes checking outlets simple and safe. The build quality feels solid and durable, and the display is bright and easy to read. I love how intuitive the controls are, even for beginners. This tool has saved me time and given me peace of mind knowing my electrical systems are functioning properly. For the price, the performance is outstanding. Highly recommended for DIYers and professionals alike!
C**N
Comme sur l’annonce, perfect
Trustpilot
2 weeks ago
2 weeks ago