Introducing the new Megger S1 & MIT range

Megger’s Insulation Resistance Testers are trusted across industries from power utilities to railways for their speed, accuracy, and safety.

Now redesigned for simplicity, the range – formerly the S1 and MIT series – is grouped into Essential, Advanced, and Expert categories, each packed with enhancements for even better performance and reliability.

Megger’s Insulation Resistance Testers are trusted across industries from power utilities to railways for their speed, accuracy, and safety.

Now redesigned for simplicity, the range – formerly the S1 and MIT series – is grouped into Essential, Advanced, and Expert categories, each packed with enhancements for even better performance and reliability.

Out with the old. In with the new.

Out with the old. In with the new.

Essential

Performs all of the most commonly needed tasks.

Perfect for:

Power Utilities

  • Commissioning and testing after repair – distribution
  • Maintenance – distribution

Industrial Users

  • HV motor testing
  • Maintenance

Railway Applications

  • Traction motor testing
  • Third-rail power system testing

Advanced

For users with more demanding requirements.

Perfect for:

Same as essential, plus:

Power Utilities

  • Commissioning and testing after repair – transmission
  • Maintenance – transmission

Production / Manufacturing Applications

  • Cable manufacturers
  • Production testing

Expert

Offers the highest levels of performance and versatility.

Perfect for:

Power Utilities

  • Commissioning and testing after repair – transmission
  • Maintenance – transmission

Production / Manufacturing Applications

  • Cable manufacturers
  • Production testing

Essential

Performs all of the most commonly needed tasks.

Perfect for:

Power Utilities

  • Commissioning and testing after repair – distribution
  • Maintenance – distribution

Industrial Users

  • HV motor testing
  • Maintenance

Railway Applications

  • Traction motor testing
  • Third-rail power system testing

Advanced

For users with more demanding requirements.

Perfect for:

Same as essential, plus:

Power Utilities

  • Commissioning and testing after repair – transmission
  • Maintenance – transmission

Production / Manufacturing Applications

  • Cable manufacturers
  • Production testing

Expert

Offers the highest levels of performance and versatility.

Perfect for:

Power Utilities

  • Commissioning and testing after repair – transmission
  • Maintenance – transmission

Production / Manufacturing Applications

  • Cable manufacturers
  • Production testing

ESSENTIAL

The correct tools to get you started

  MIT515/2

The Megger MIT515 is a rugged, portable 5 kV insulation resistance tester with multiple test modes, preset voltages, mains operation, clear display, intelligent charging, and CAT IV 600 V safety for high-voltage equipment maintenance.

MIT1015

The Megger MIT1015 is a high-performance 10 kV insulation tester built for serious professionals. With a massive 20 TΩ range, fast charge time, and intuitive controls, it handles the toughest testing jobs with ease. Its rugged build and long battery life make it perfect for demanding field work.

ADVANCED

Next-level performance

  MIT525/2

The Megger MIT525 is a rugged, portable 5 kV insulation tester with advanced diagnostics, multiple test modes, data logging, USB transfer, clear display, and CAT IV 600 V safety for high-voltage equipment maintenance.

MIT1025/2

The Megger MIT1025 is a rugged, portable 10 kV insulation tester with advanced diagnostics, multiple test modes, data logging, USB transfer, clear display, and CAT IV 600 V safety for high-voltage equipment maintenance.

MIT1525/2

The Megger MIT1525/2 is a top-tier 15 kV insulation tester with an impressive 30 TΩ range and advanced features like PI, DAR, and DD testing. Designed for critical high-voltage applications, it delivers fast, accurate results with simple controls, long battery life, and a rugged, field-ready build.

EXPERT

Unleash full capability

  S1-568/2

The Megger S1-568/2 is a high-performance 5 kV insulation tester built for demanding industrial and utility environments. With a 15 TΩ range, advanced diagnostic tests, and rapid charge capabilities, it offers powerful performance, long battery life, and a rugged design for reliable results in the toughest conditions.

S1-1068/2

The Megger S1-1068/2 is a rugged 10 kV insulation tester designed for the most demanding environments. With a 20 TΩ range, advanced diagnostics, and high noise immunity, it delivers fast, accurate results even in harsh conditions. Ideal for utilities and industrial applications where reliability matters most.

S1-1568/2

The Megger S1-1568/2 is a powerful 15 kV insulation tester with a wide 35 TΩ range, built for high-voltage testing in challenging environments. It offers advanced diagnostic features, high noise immunity, and fast charge performance, making it ideal for critical utility and industrial maintenance work.

The new MIT on the block

The new Megger MIT1015 is a powerful 15 kV insulation tester with a wide 35 TΩ range, built for high-voltage testing in challenging environments. It offers advanced diagnostic features, high noise immunity, and fast charge performance, making it ideal for critical utility and industrial maintenance work.

The technical specifications.

Feature Essential Advanced Expert
Test Capability
High Guard Terminal Performance
IR
IR (t)
PI (Polarisation Index)
PI Predictor
DAR (Dielectric Absorption Ratio)
DD (Dielectric Discharge)
Ramp Test
RE>Act Mode
PDC Test
Test Voltage
Max. Voltages available
5 kv or 10 kV
5 kv, 10 kV or 15kV
5 kv, 10 kV or 15kV
Charging and burn mode current
Default maximum current
3 mA
3 mA
6 mA
User selectable max. current values
N/A
1 mA, 3 mA, 6 mA
(mains only)
1 mA, 2 mA, 3 mA,
4 mA, 5 mA, 6 mA,
(mains only)
Noise immunity
User selectable max. current values
3 mA
(LV and MV <45 kV)
6 mA
(HV <230 kV)
8 mA
(EHV <1000 kV)
Adaptive filter
Negative current handling
Averaging filter
Safety
CAT IV 1000 V
CAT IV 600 V
Hazardous peak voltage detection
during IR measurement
Data storage / features
On board – time stamped
Temperature value stored
Humidity value stored
Communications
Test result transfer via wired USB
Test result transfer via wireless bluetooth LE
Test result live streaming via wired USB
Test result live streaming via wireless Bluetooth LE
Display
New custom colour display
Accessories
Carry all holdall
Deeper lid pouch
Software support
CertSuite Asset Lite compatible
CertSuite Asset compatible
Power DB Lite supplied free
Power DB Advance or Pro support