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Major Tech Digital Insulation Tester

Product Code: MT 550

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Product Description

The MT550 is an easy to use digital insulation and continuity tester in a single, compact handheld unit, which provides maximum versatility for both trouble-shooting and preventative maintenance. The MT550 offers three insulation test ranges: 250V, 500V and 1000V together with 200mA short current for continuity range and 200Ω and 200kΩ resistance range. The MT550 measures AC/DC voltage, battery voltage indication, a continuity buzzer, data hold function and LED back light.

The MT550 features a large LCD screen that indicates the insulation resistance together with the output voltage during the insulation test. Once the test is complete the circuit under test will be automatically discharged. For hands free operation the MT550 comes with a continuous lock function


  • Carrying Case
  • HDT1282Test leads
  • Strap
  • MTMAGMagnetic Strip
  • AA Batteries
  • Instruction manual

Features :

  • Three Insulation test ranges: 250V, 500V, 1000V
  • 750V AC voltage
  • 1000V DC voltage ranges
  • Live circuit warning and buzzer
  • Data Hold
  • 1mA Output Current on insulation test
  • 200mA Short circuit on continuity range
  • Continuity Buzzer
  • Automatic discharge after test
  • Lock down test button for continuous use
  • Hands free strap and magnet supplied as standard accessories
  • Rubber overmould housing
  • Illuminated display
  • CAT IV 600V and CAT III 1000V