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⚙️ Master your measurements with Klein’s pro-grade precision!
The Klein Tools MM420 is a durable, auto-ranging TRMS digital multimeter designed for professionals and serious DIYers. It measures up to 600V AC/DC voltage, 10A current, 50MΩ resistance, and temperature up to 1000°C, with added features like capacitance, frequency, and diode testing. Safety-focused with Lead-Alert LEDs and built to withstand 2-meter drops, it’s engineered for accuracy and reliability in demanding environments.
| Asin | B0B57PFFYX |
| Best Sellers Rank | 98,378 in DIY & Tools (See Top 100 in DIY & Tools) 174 in Multi Testers |
| Brand | KLEIN TOOLS |
| Colour | Orange/Black |
| Compatible Devices | Test leads (included with the product) |
| Country Of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (731) 4.7 out of 5 stars |
| Global Trade Identification Number | 00092644693748 |
| Included Components | Digital Multimeter, TRMS Auto-Ranging, 600V, Temp |
| Item Dimensions | 23.7 x 12.9 x 9.7 centimetres |
| Item Type Name | Digital Multimeter, TRMS Auto-Ranging, 600V, Temp |
| Item Weight | 413 g |
| Manufacturer | Klein Tools |
| Manufacturer Part Number | MM420 |
| Measurement Type | Multimeter |
| Minimum Operating Voltage | 9 Volts |
| Model Number | MM420 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Power Source | Battery Powered |
| Product Warranty | 1 year manufacturer |
| Specification Met | Cat Iii 600v Safety Rating |
| Style Name | w/Lead Alert |
| Unit Count | 1.0 count |
| Upc | 092644693748 |
| Upper Temperature Rating | 1000 Degrees Celsius |
User
It's great, but a bit of faff with the lack of the case
My first multimeter, so can't compare, but it's well built, and it has clever features.It didn't come with the case despite the description--something about their supplier changing the package--so I contacted the seller and they offered £10 off and that they'll update the description... Nothing at the time of writing, so if you do get this without the case, contacting them may be a good way to try and get them to finally change the description, or try to get a little partial refund.
User
Does not come with carry case
Multimeter is good and so are its functions. However it does not come with a carry case as stated. False advertising
User
Inadequate
Bought for my husband. But not impressed. He found inadequate.
User
Review
Does exactly what I bought it for
User
Klein Tools MM420 multimetr cyfrowy
Rewelacyjny multimetr,polecam również dla początkujących.
User
Buena Calidad
Buen producto y fácil de usar.
User
Parfait
Parfait
User
Fantastic Multimeter
I’ve been using the Klein Tools MM420 Digital Multimeter for a bit now, and I’m honestly impressed with how solid and reliable it is.First thing I noticed is the build quality. Like most Klein Tools products, it feels durable and well-made, not like one of those cheap meters that feels like it’ll fall apart if you look at it wrong. The buttons and dial have a good, firm feel, and everything is clearly labeled.The auto-ranging feature is a huge plus. It makes taking measurements quick and simple without having to constantly adjust settings. The readings are fast and consistent, and the True RMS capability gives me confidence that I’m getting accurate results, especially when working with AC circuits.I’ve used it for checking voltage, current, and resistance, and it handles everything without any issues. The display is easy to read, even in less-than-ideal lighting, and the overall layout is intuitive.For the price, this is a great value. It’s reliable, easy to use, and built to last. Whether you’re doing basic troubleshooting or more involved electrical work, this meter gets the job done without any hassle.Definitely one of those tools you buy once and don’t have to think about replacing anytime soon.
User
La facilité d'utilisation
Comme sur l’annonce, perfect
Trustpilot
3 weeks ago
2 months ago