Martindale Insulation Resistance Tester IN2101


The Martindale IN2101 insulation tester is the ideal low cost solution.

Testing at 500V, it's suitable for domestic installers, as well as domestic appliance repair companies.

It features a large backlit LCD display with analogue arc, continuity buzzer and auto hold. An automatic zero adjust removes the resistance of the leads and the test button can be set to either latching, to give a permanent output, or 'press to test'.

The IN2101 is fully compliant with all UK and International standards, including the 17th Edition, and is supplied with unfused test leads with croc clips, batteries, instruction manual and a soft carry case.

Insulation Test

  • ·0.200MΩ - 1000MΩ at 500V in 4 ranges
  • ·Automatic Discharge
  • ·Accuracy: +/- 3% reading, + 5 digits


  • ·Range: 0.1Ω - 40Ω
  • ·Resolution: 0.01Ω
  • ·Short Circuit Current: >200mA
  • ·Accuracy: +/- 3% reading, + 5 digits
  • ·Buzzer: <30Ω
  • ·Resistance: 0.1Ω - 1999kΩ
  • ·Accuracy: +/- 3% reading, + 5 digits

Voltage Tests

  • ·Voltage Range: 600V AC / DC
  • ·Live Circuit Warning: >30V
  • ·Accuracy: +/- 3% reading, + 5 digits

General Specifications

  • ·LCD Backlit Display with Analog Arc
  • ·Auto Hold & Auto Zero
  • ·IP44 Protection
  • ·CAT III 600V Protection
  • ·Dimensions 90 x 120 x 54mm
  • ·Supplied with batteries, manual, carry case & TL47 test leads

from: £236.40 inc VAT
(£197.00 + VAT)

View Options/Prices

Please select the required order quantity from the drop down lists – when ready add the items to your order with the ‘Add’ button.

Available Option(s): Item Code: Price:
IN2101 (IN2101)  £236.40 inc VAT
(£197.00 + VAT)

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