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Extech EX420 11 Function Professional MultiMeter

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3 years
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Key Features

  • Averaging, autoranging DMM with large digit LCD display and temperature function
  • Averaging DMM with 11 functions and 0.3-percent basic accuracy
  • AC/DC voltage and current, resistance, capacitance, frequency, temperature, diode/continuity, duty cycle
  • Input fuse protection and mis-connection warning
  • 20A max current

Package Details

Shipping Weight: 1.15 pounds
Package Size: 10.6 x 5.9 x 2.9 inches

Product Description

Performs 11 basic and advanced measurements with ±0.3 percent basic accuracy.
11-Function Auto-Ranging Multimeter

The Extech EX420 is a compact, 11-function autoranging digital multimeter. The EX420 measures AC/DC voltage and current, resistance, diode, continuity, and frequency, all with ±0. 3 percent basic accuracy. The EX420 can also capture Type K temperature readings. These numerous functions enable professionals to carry one meter into the field instead of several.

Features Overview

Featuring a large, backlit LCD screen (4,000-count) with easy-to-read, 1-inch-tall digits, the EX420 provides high resolution over wide ranges, low current measuring down to 0.1 uA, as well as input fuse protection and misconnection warnings. The meter's other functions include Data Hold to freeze on-screen readings, and Auto Power Off to conserve battery life. A Type K thermometer is built in for contact temperature measurements


EX420 digital multimeter, CAT III test leads, multi-position tilt stand, Velcro hanging strap, holster with built-in test lead storage, Type K bead wire temperature probe, 9-volt battery, and user manual. The EX420 includes a one-year limited warranty.

Features & Benefits Overview
  • Accurately performs 11 basic and advanced measurements
  • Lightweight and ergonomically designed for comfortable one-handed operation
  • Large, high-contrast LED display with 1-inch numbers is easy to read
  • Type K bead wire temperature probe for surface or air measurements
  • One-year limited warranty on parts and labor

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