

🔧 Power Your Precision with Klein’s MM420 – The Multimeter That Means Business!
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, plus temperature, capacitance, frequency, duty cycle, and diode tests. Featuring a lead-alert LED system for enhanced safety and accuracy, it comes complete with a carrying case, CAT III/CAT IV safety-capped test leads, thermocouple, and batteries—making it a reliable, all-in-one diagnostic tool trusted by professionals nationwide.












| ASIN | B0B57PFFYX |
| Best Sellers Rank | #6,354 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Multi Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Orange/Black |
| Colour | Orange/Black |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 4,494 Reviews |
| Global Trade Identification Number | 00092644693748 |
| Included Components | Digital Multimeter, TRMS Auto-Ranging, 600V, Temp |
| Item Dimensions | 23.7 x 12.9 x 9.7 centimeters |
| Item Length | 6.41 Inches |
| Item Type Name | Building Material |
| Item Width | 1.78 Inches |
| Item dimensions L x W x H | 23.7 x 12.9 x 9.7 centimeters |
| Manufacturer | KLEIN TOOLS |
| Measurement Type | Multimeter |
| Min. Operating voltage | 9 Volts |
| Minimum Operating Voltage | 9 Volts |
| Model | MM420 |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Specification Met | Cat Iii 600v Safety Rating |
| Style | w/Lead Alert |
| Style Name | w/Lead Alert |
| UPC | 092644693748 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 1000 Degrees Celsius |
T**U
Automobile
This is very good product
Trustpilot
5 days ago
1 week ago