ASIN B0B57PFFYXImage via Amazon
Klein Tools MM420 Auto-Ranging TRMS Digital Multimeter | 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance
- Versatile Functionality
- Lead-Alert Protection
- Backlit Display
- Accurate Measurements
$64.64
Price as of Oct 16, 2026, 7:47 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
- Checkout happens securely on Amazon
- Read verified customer reviews first
- Shortlisted by Everstead Finds
Disclosure: this page contains affiliate links. As an Amazon Associate, I earn from qualifying purchases, at no extra cost to you.
Key features
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 | 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance
See the latest price, customer reviews and delivery options on Amazon.







