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Klein Tools MM420 Auto-Ranging TRMS Digital Multimeter | 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance

ASIN B0B57PFFYXImage via Amazon

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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
Price on Amazon

$64.64

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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.

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From the listing

Key features

01

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

02

Lead-Alert Protection

LEDs on the meter illuminate to indicate proper test lead placement, enhancing accuracy and safety during measurements

03

Backlit Display

LCD shows clear readings in low-light conditions for enhanced visibility

04

Accurate Measurements

Auto-ranging and True Root Mean Squared (TRMS) technology provides precise and accurate measurements

05

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

06

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

07

Complete Package

Includes test leads with CAT III/CAT IV safety caps, thermocouple, instructions, and 2 x AAA batteries

Ready when you are

Klein Tools MM420 Auto-Ranging TRMS Digital Multimeter | 600V AC/DC Voltage, 10A AC/DC Current, 50 MOhms Resistance

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$64.64 on Amazon
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