--- product_id: 737545143 title: "Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black" brand: "klein tools" price: "664.85 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/737545143-klein-tools-mm420-digital-multimeter-automatic-range-trms-multimeter-600v store_origin: TN region: Tunisia --- # 600V AC/DC voltage range Low battery indicator & easy battery access 6.6 ft drop-resistant durability Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black **Brand:** klein tools **Price:** 664.85 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power up your precision — measure like a pro, wherever the job takes you! ## Quick Answers - **What is this?** Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black by klein tools - **How much does it cost?** 664.85 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/737545143-klein-tools-mm420-digital-multimeter-automatic-range-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 - • **Built to Last:** Rugged design withstands 2-meter drops — your reliable jobsite companion - • **Precision TRMS Tech:** True RMS measurement for ultra-accurate readings every time - • **Smart Power Management:** Low battery indicator with quick-access battery & fuse compartment keeps you working uninterrupted - • **Versatile Measurement Suite:** Measures voltage, current, resistance, temperature, capacitance, frequency & more - • **User-Friendly LED Illumination:** Backlit display & LED lead placement light for flawless readings in any lighting ## Overview The Klein Tools MM420 Digital Multimeter delivers professional-grade True RMS accuracy across a broad 600V AC/DC voltage and 10A current range. Engineered with electricians’ insights, it features versatile measurements including temperature and capacitance, a backlit display with LED lead illumination, and rugged durability to survive 6.6 ft drops. Its smart low battery indicator and easy battery/fuse access ensure uninterrupted workflow, making it an essential tool for millennial managers who demand precision and reliability on every project. ## Description Product Description Klein Tools MM420 Multimeter is a True Square Average Square Root (TRMS) multimeter for measuring AC/DC voltage, AC/DC current, and resistance. It can also measure temperature, capacitance, frequency, duty cycle, test diodes and conductivity. The Klein Tools test and measurement product line is designed exclusively from the ground up by an electrician. By combining years of field research and extensive inputs from electricians across the country, the company influenced the development of innovative, time-saving meter and electrical testers. Safety Warning Do not use the meter in electric storms or rainy weather. Also, do not use if the meter or test lead appears damaged ## Features - This multimeter is made with automatic measurement standard square root (TRMS) technology for increased precision - Measures up to 600V AC/DC voltage, 10A AC/DC current, 50 mom resistance, continuous, temperature, capacitance, frequency, duty cycle and test diodes - Led light protection with LED illumination for lead placement and easy to read backlit display - Low battery indicator and easy access battery and fuse compartment - Durable meter withstands 6.6 feet (2 m) drops ## Technical Specifications | Specification | Value | |---------------|-------| | Amazon Bestseller | #663,655 in DIY, Tools & Garden (See Top 100 in DIY, Tools & Garden) #44,063 in Electrical Equipment | | Asin | B0B57PFFYX | | Brand Name | KLEIN TOOLS | | Color | orange/black | | Compatible Devices | テストリード(製品に付属) | | Customer Reviews | 4.7 4.7 out of 5 stars (704) 4.7 out of 5 stars | | Global Trade Identification Number | 00092644693748 | | Included Components | Digital Multimeter, TRMS Auto Range, 600V, Temperature | | Item Dimensions | 23.7 x 12.9 x 9.7 cm | | Item Length | 6.41 Inches | | Item Type Name | Digital Multimeter, TRMS Auto Range, 600V, Temperature | | Item Weight | 50 g | | Item Width | 1.78 Inches | | Manufacturer | Klein Tools | | Maximum Operating Voltage | 600 Volts | | Measurement Type | Multimeter | | Minimum Operating Voltage | 9 Volts | | Model | MM420 | | Number Of Items | 1 | | Number Of Packs | 1 | | Part Number | MM420 | | Power Source | Battery Powered | | Specification Met | Cat Iii 600v Safety Rating | | Style Name | Includes lead door rate | | Unit Count | 1 Count | | Upc | 092644693748 | | Upper Temperature Rating | 1000 Degrees Celsius | ## Product Details - **Brand:** KLEIN TOOLS - **Color:** orange/black - **Item dimensions L x W x H:** 23.7 x 12.9 x 9.7 cm - **Power Source:** Battery Powered - **Style:** Includes lead door rate ## Images ![Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black - Image 1](https://m.media-amazon.com/images/I/51hgJ2yCwqL.jpg) ![Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black - Image 2](https://m.media-amazon.com/images/I/61qtkmOaOxL.jpg) ![Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black - Image 3](https://m.media-amazon.com/images/I/6180AVes-QL.jpg) ![Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black - Image 4](https://m.media-amazon.com/images/I/51PPCchY4qL.jpg) ![Klein Tools MM420 Digital Multimeter, Automatic Range TRMS Multimeter, 600V AC/DC Voltage, 10A AC/DC Current, 50 Momh Resistor, Orange/Black - Image 5](https://m.media-amazon.com/images/I/61KJQVaGbBL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Klein Tools MM420 multimetr cyfrowy *by on Reviewed in Poland December 16, 2025* Rewelacyjny multimetr,polecam również dla początkujących. ### ⭐⭐⭐⭐⭐ Buena Calidad *by on Reviewed in Spain February 13, 2026* Buen producto y fácil de usar. ### ⭐⭐⭐⭐⭐ Parfait *by on Reviewed in France May 1, 2026* Parfait ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/737545143-klein-tools-mm420-digital-multimeter-automatic-range-trms-multimeter-600v](https://www.desertcart.tn/products/737545143-klein-tools-mm420-digital-multimeter-automatic-range-trms-multimeter-600v) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-15*