---
product_id: 587845916
title: "Klein Tools MM420 Digital Multimeter, Auto-Ranging TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance, Orange/Black"
brand: "klein tools"
price: "€ 130.92"
currency: EUR
in_stock: true
reviews_count: 6
category: "Klein Tools"
url: https://www.desertcart.it/products/587845916-klein-tools-mm420-digital-multimeter-auto-ranging-trms-multimeter-600v
store_origin: IT
region: Italy
---

# 600V AC/DC voltage range 50 MΩ resistance measurement 10A AC/DC current capacity Klein Tools MM420 Digital Multimeter, Auto-Ranging TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance, Orange/Black

**Brand:** klein tools
**Price:** € 130.92
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power Your Precision, Own the Job!

## Quick Answers

- **What is this?** Klein Tools MM420 Digital Multimeter, Auto-Ranging TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance, Orange/Black by klein tools
- **How much does it cost?** € 130.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/587845916-klein-tools-mm420-digital-multimeter-auto-ranging-trms-multimeter-600v)

## Best For

- klein tools enthusiasts

## Why This Product

- Trusted klein tools brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready for the Field:** Includes rugged carrying case, CAT III/CAT IV safety-capped leads, thermocouple, and batteries—work anywhere, anytime.
- • **All-in-One Precision:** Auto-ranging TRMS tech delivers accurate voltage, current, and resistance readings every time.
- • **Safety First, Always:** Lead-Alert LEDs ensure correct test lead placement, minimizing errors and maximizing safety on the job.
- • **User-Friendly Design:** Backlit LCD, data hold, min/max readings, and auto power-off combine for effortless, efficient operation.
- • **Versatility Meets Convenience:** Measures temperature, capacitance, frequency, duty cycle, and diode tests—your ultimate diagnostic toolkit.

## Overview

The Klein Tools MM420 is a professional-grade auto-ranging TRMS digital multimeter designed for electricians and technicians. It measures up to 600V AC/DC voltage, 10A AC/DC current, and 50 MΩ resistance, with added functions like temperature, capacitance, frequency, and diode testing. Equipped with Lead-Alert safety LEDs, a rugged carrying case, and essential accessories, it ensures accurate, safe, and versatile field measurements with a user-friendly interface.

## Description

Klein Tools MM420 Multimeter is an auto-ranging, true root mean square (TRMS) multimeter that measures AC/DC voltage, AC/DC current, and resistance. It can also measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity. Klein Tools Test and Measurement product line was exclusively designed from the ground up by electricians for electricians. Years of field research, combined with extensive input from electricians across America, inspired the development of meters and electrical testers loaded with innovative, time-saving features.

Review: Automobile - This is very good product
Review: This multimeter is very useful.

## Features

- COMPLETE PACKAGE: Includes carrying case, test leads with CAT III/CAT IV safety caps, thermocouple, instructions, and 2 x AAA batteries
- VERSATILE FUNCTIONALITY: Measures AC/DC voltage up to 600V, 10A AC/DC current, 50MΩ resistance; additional features include continuity, temperature, capacitance, frequency/duty cycle and diode test
- LEAD-ALERT PROTECTION: LEDs on the meter illuminate to indicate proper test lead placement, enhancing accuracy and safety during measurements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B57PFFYX |
| ASIN  | B0B57PFFYX |
| Batteries | 2 AAA batteries required. (included) |
| Batteries  | 2 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #59,398 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #257 in Multi Testers |
| Color | Orange/Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,475) |
| Customer reviews | 4.6 4.6 out of 5 stars (4,475) |
| Date First Available | 26 July 2022 |
| Date First Available  | 26 July 2022 |
| Display Style | LCD |
| Finish | Brushed |
| Included components | Digital Multimeter, TRMS Auto-Ranging, 600V, Temp |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 413 g |
| Item model number | MM420 |
| Item model number  | MM420 |
| Manufacturer | KLEIN TOOLS |
| Manufacturer  | KLEIN TOOLS |
| Material | Blend |
| Measurement Accuracy | 600V AC/DC |
| Part number | MM420 |
| Pattern | Multimeter |
| Power source type | Corded Electric |
| Product Dimensions | 23.7 x 12.9 x 9.7 cm; 412.77 g |
| Product Dimensions  | 23.7 x 12.9 x 9.7 cm; 412.77 g |
| 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 | w/Lead Alert |

## Product Details

- **Brand:** KLEIN TOOLS
- **Colour:** Orange/Black
- **Item weight:** 413 g
- **Power source:** Corded Electric
- **Style:** w/Lead Alert

## Images

![Klein Tools MM420 Digital Multimeter, Auto-Ranging TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance, Orange/Black - Image 1](https://m.media-amazon.com/images/I/51O0EAYj9aL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Automobile
*by T***U on 16 September 2025*

This is very good product

### ⭐⭐⭐⭐⭐ Review
*by H***8 on 31 July 2025*

This multimeter is very useful.

### ⭐⭐⭐⭐⭐ Review
*by D***J on 16 December 2025*

Rewelacyjny multimetr,polecam również dla początkujących.

## Frequently Bought Together

- Klein Tools MM420 Digital Multimeter, Auto-Ranging TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance
- WERJIA Hard Carrying Case for Klein Tools MM420/MM325/MM720/MM700/ET600/MM450 Digital Multimeter
- Klein Tools 69417 Rare-Earth Magnetic Hanger, with Strap

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-20*