- 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
- BACKLIT DISPLAY: LCD shows clear readings in low-light conditions for enhanced visibility
- ACCURATE MEASUREMENTS: Auto-ranging and True Root Mean Squared (TRMS) technology provides precise and accurate measurements
- CONVENIENT FEATURES: Test lead holders on the back of the meter, kickstand and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
- DURABLE CONSTRUCTION: Built to withstand a 6.6-Foot (2 m) drop, ideal for use in basic and controlled electromagnetic environments such as residential, business, HVAC and light-industrial locations
- COMPLETE PACKAGE: Includes test leads with CAT III/CAT IV safety caps, thermocouple, instructions, and 2 x AAA batteries
Klein Tools MM420 Auto-Ranging TRMS Digital Multimeter
Last updated on October 8, 2026 5:01 am Details
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Category: Electrician
| Power Source | Battery Powered |
|---|---|
| Minimum Operating Voltage | 9 volts |
| Upper Temperature Rating | 60 °C |
| Measurement Type | Multimeter |
| Compatible Devices | Test leads (included with the product) |
| Style Name | Auto-Ranging |
| Color | Orange/Black |
| Item Weight | 14.56 ounces |
| Item Dimensions | 9.33 x 5.08 x 3.82 inches |
| Specification Met | Cat Iii 600v Safety Rating |
| Brand Name | KLEIN TOOLS |
| Model | MM420 |
| Unit Count | 1 Count |
| UPC | 092644693748 |
| Number of Items | 1 |
| Item Highlight | 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance |
| Warranty Description | Call vendor for warranty |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644693748 |
| Included Components | Digital Multimeter, Auto-Ranging, 600V |
| Item Type Name | Building Material |
| Part Number | MM420 |











