Megger MIT1025-UK 10 kV Diagnostic Insulation Resistance Tester



  • Measures up to 20 TΩ
  • PI, DAR, DD, SV and ramp test
  • Operate from line power/mains if battery dead
  • Li ion battery - extended capacity, rapid charge
  • Advanced memory with time/date stamp
More Information
Warranty2 years
Price MatchYes

Megger MIT1025-UK 10 kV Diagnostic Insulation Resistance Tester

Offering CAT IV, the MIT1025 is compact, light 10 kV insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment. Enclosed in a tough case it is both smaller and lighter than its predecessor making it even easier to carry and store.

As well as measuring insulation resitance to 20 TΩ, the MIT1025 also offers various diagnostic tests such as Polarisation index, Dielectric Absorption Ratio, Step Voltage, Dielectric discharge and ramp testing.

Now equipped with lithium ion fast rechargeable batteries, the instrument has a large, clear, easy to read, display making it equally suitable for use in both bright sunlight and poorly lit environments. Information displayed includes resistance, voltage, leakage current, capacitance, battery status and time constant. In addition, the elapsed time of the test is displayed constantly removing the need for separate timer.


  • 20TΩ maximum insulation resistance
  • Timed IR plus PI and DAR diagnostic testing
  • Can operate even when batteries are dead when hooked up to on line power/mains
  • Rapid charge battery gives up to 6 hours continuous testing
  • Dedicated voltmeter functionality from 30V to 660V
  • CAT IV 600V safety rated
  • Large built-in LCD screen with automatic backlight for use in darkened conditions
  • Noise filter automatically filters out electrical noise up to 3mA
  • Dielectric discharge, step voltage and ramp testing functions
  • In built memory stamps data with time/date information and allows users to recall tests
  • Download data directly to PC via USB connection
  • Compatible with PowerDB Lite software package
Compare RangeMIT515MIT525MIT1025MIT1525
Test Voltage
15.0 kVx
10.0 kVxx
5.0 kVxxxx
2.5 kVxxxx
1.0 kVxxxx
500 Vxxx
250 Vxx
Max reading10 TΩ10 TΩ20 TΩ30 TΩ
Min reading10 kΩ10 kΩ10 kΩ10 kΩ
Leakage currentxxxx
Test Types
Timed insulation resistancexxxx
Polarisation indexxxxx
Dielectric absorption indexxxxx
Step voltagexxx
Dielectric dischargexxx
Other Features
Analogue and digital displayxxxx
Short circuit current3 mA3 mA3 mA4 mA
Timer control and displayxxxx
Max noise rejection3 mA3 mA3 mA4 mA
USB outputxxxx
PowerDB Litexxxx

What's Included?

  • Megger MIT1025
  • User guide CD
  • Power lead
  • 3 m leadset x 3
  • Medium insulated clips
  • 3 m leadset x 3
  • Large insulated clips
  • USB cable
  • PowerDB Lite software
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