Megger MIT420/2 Insulation Tester

The MIT420/2 is a versatile insulation and continuity tester that offers a wide range of test voltages and fast continuity testing. It includes features for evaluating insulation quality and has a CAT IV 600 V safety rating.

SKU: 73263

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Megger MIT420 2 Insulation Tester

Introducing the Megger MIT420/2 Insulation Tester, a state-of-the-art solution that sets a new standard for comprehensive electrical testing. This upgraded model, succeeding the highly acclaimed MIT410/2, distinguishes itself with its standout feature—a built-in memory storage system.

Seamlessly store and recall all test results, making it an ideal choice for testing over extended periods. The MIT420/2 offers a diverse range of testing capabilities, including insulation, continuity, voltage, capacitance, and more. With selectable test voltages ranging from 50 to 1000V, and a variable test voltage option from 10V to 1000V, this tester provides unparalleled flexibility for various applications.

Its redesigned case with a built-in backstand ensures hands-free operation, making it an indispensable tool for both electrical and industrial inspections. Boasting a maximum insulation measurement range of 200GΩ, the MIT420/2 also supports Polarisation Index (PI) and Dielectric Absorption Ratio (DAR) tests for a comprehensive analysis. With features such as PASS/FAIL indication, current test voltage display, and automatic power down, this tester combines efficiency and accuracy.

Powered by standard AA or NiMH rechargeable batteries, and holding CAT IV 600V and CAT III 1000V safety ratings, the Megger MIT420/2 stands as a beacon of reliability and precision, making it the ultimate choice for professionals seeking top-notch performance in electrical testing.

Megger MIT400/2 Key Features

  • Selectable Test Voltages (50, 100, 250, 500, 1000V)
  • Variable Test Voltage (10V to 1000V)
  • 2% Test Voltage Accuracy
  • PASS/FAIL Indication
  • Current Test Voltage Display
  • Maximum Insulation Measurement (200GΩ)
  • PI and DAR Tests
  • Continuity Testing with Automatic Reverse Polarity
  • AC/DC Voltage Measurements (Up to 600V)
  • mV AC/DC Range
  • Frequency Measurements (15 to 450Hz)
  • Capacitance Measurements (1nF to 10μF)
  • Combined Continuity and Voltage Measurements
  • Automatic Power Down
  • Built-in Memory Storage with Easy Recall
  • Powered by Standard AA or NiMH Rechargeable Batteries
  • CAT IV 600V and CAT III 1000V Safety Rated

Megger MIT420 2 Specifications:

Parameter MIT420/2
Insulation 50/100/250/500/1000V
Lock Button on MΩ
Continuity 0.01Ω to 1MΩ
Auto Reverse Polarity (setup ON-OFF)
Lead √Null (<10Ω)
AC/DC Volts 600V
mV AC/DC Range
Frequency Measurements 15 to 400Hz
Input Impedance 0.25MΩ
Capacitance 0.1nF to 10μF
PASS/FAIL on Limit Alarms
Auto Power Down (setup)
On-Board Memory
Bluetooth Download + Software
AA Alkaline or NIMH Both
Recharger Ready
CAT IV 600V / CAT III 1000V


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Megger since 1889 is a leading global premium manufacturer of measurement and testing technology. Megger top priority has always been to make your everyday work easier and safer. As such, insulation testers, micro-ohmmeters, and multimeters are among the long line of Megger inventions, making this brand one of the pioneers in the electrical industry. Megger products combine many years of experience and the valued feedback from our global users with the inventiveness and conscientiousness of our product developers. In Germany, we manufacture at three sites, Aachen, and Baunach near Bamberg and Radeburg near Dresden. Other manufacturing locations are based in Sweden, England, and America.







Technical Specifications

Feature Description
Selectable Test Voltages 50, 100, 250, 500, 1000V
Variable Test Voltage 10V to 1000V
Test Voltage Accuracy 2%
PASS/FAIL Indication Yes
Current Test Voltage Display Yes
Maximum Insulation Measurement 200GΩ
PI and DAR Tests Yes
Continuity Testing With Automatic Reverse Polarity
AC/DC Voltage Measurements Up to 600V
mV AC/DC Range Yes
Frequency Measurements 15 to 450Hz
Capacitance Measurements 1nF to 10μF
Combined Continuity and Voltage Measurements Yes
Automatic Power Down Yes
Built-in Memory Storage with Easy Recall Yes
Power Source Standard AA or NiMH Rechargeable Batteries
Safety Rating CAT IV 600V and CAT III 1000V