Manufacturers +

Price

Insulation Testers

  • Extech 380396 High Voltage Digital Insulation Tester (220V)
    Usually Ships In 3 to 5 Business Days

    Extech 380396 High Voltage Digital Insulation Tester (220V)

    £769.00 (ex VAT)
    £922.80 (inc VAT)
    • Insulation testing up to 60 gigaohms max
    • Selectable 500 V to 5 kV test voltages range
    • PI and DAR functions for insulation trend
    • AC/DC voltage to 600 V with min/max capture
  • Martindale IN2203 Advanced Insulation Tester
    Usually Ships In 6 to 13 Business Days

    Martindale IN2203 Advanced Insulation Tester

    £340.00 (ex VAT)
    £408.00 (inc VAT)
    • 5 selectable test voltages
    • Measures up to 20G Ohms
    • AC/DC voltage up to 1000V
    • Rugged design with carry case
  • Megger MIT1015 Essential 10 kV Insulation Resistance Tester
     Available For Pre-Order

    Megger MIT1015 Essential 10 kV Insulation Resistance Tester

    £3,045.00 (ex VAT)
    £3,654.00 (inc VAT)
    • 10 kV insulation tests to 20 TΩ range max
    • ±5% accuracy to 2 TΩ at 10 kV output assured
    • RE>Act mode and high-noise immunity assured
    • Rapid-charge Li-ion, 4.5 h at 10 kV operation
  • Megger 1001-943 MIT1025 Resistance Tester
     Available For Pre-Order

    Megger MIT1025/2 Resistance Tester

    £3,685.00 (ex VAT)
    £4,422.00 (inc VAT)
    • Tests insulation up to colossal 20 TΩ range
    • 10 kV output selectable within tough case
    • Operates from mains even with empty cells
    • Logs PI DAR DD SV ramp results in memory
  • Megger 1016-084 MIT525 Advanced 5kv Insulation Tester
     Available For Pre-Order

    Megger MIT525/2 Advanced 5kv Insulation Tester

    £2,800.00 (ex VAT)
    £3,360.00 (inc VAT)
    • 5 kV output measures up to 10 TΩ insulation
    • Noise filter rejects interference to 3 mA
    • Rapid charge Li‑ion battery allows 6 h tests
    • USB isolated port enables safe data transfer
  • Megger S1-1068 1003-012 Diagnostic Insulation Res. Tester
    Usually Ships In 3 to 5 Business Days

    Megger S1-1068 Diagnostic Insulation Resistance Tester

    £4,880.00 (ex VAT)
    £5,856.00 (inc VAT)
    • 10 kV output handles 35 TΩ insulation tests
    • 8 mA noise rejection with 4 filters inside
    • USB plus Bluetooth enable easy data logs
    • Tough IP65 dual‑case ideal for harsh HV sites
  • Megger 1002-892 S1-1568 15kV Diagnostic Insulation Tester
    Usually Ships In 3 to 5 Business Days

    Megger S1-1568 15kV Diagnostic Insulation Tester

    £4,830.00 (ex VAT)
    £5,796.00 (inc VAT)
    • 15 kV DC drive tests up to 35 TΩ reliably
    • 8 mA noise filter boosts accuracy on site
    • USB‑isolated control plus Bluetooth results
    • Rugged dual IP65 case resists dust and heat
  • Megger S1-568-UK 5kV High Performance Diagnostic Ins Tester with 15 TΩ range, Bluetooth logging and IP65 case for harsh utility work.
     Available For Pre-Order

    Megger S1-568 5kV High Performance Diagnostic Insulation Tester

    £4,125.00 (ex VAT)
    £4,950.00 (inc VAT)
    • 5 kV DC output delivers up to 15 TΩ range
    • 8 mA noise rejection with four active filters
    • Bluetooth and USB allow safe remote logging
    • IP65 dual‑case shields tester in harsh sites
  • Megger 1016‑099 MIT1525 Advanced 15KV Insulation Tester
     Available For Pre-Order

    Megger MIT1525/2 Advanced 15KV Insulation Tester

    £4,180.00 (ex VAT)
    £5,016.00 (inc VAT)
    • 15 kV DC output assesses high‑voltage plant
    • 30 TΩ measurement finds tiny insulation leaks
    • Li‑ion battery or mains supply powers shifts
    • USB data logging with on‑board time stamps
  • Megger 1016-079 MIT515 Essential 5KV Insulation Tester
     Available For Pre-Order

    Megger MIT515/2 Essential 5KV Insulation Tester

    £2,290.00 (ex VAT)
    £2,748.00 (inc VAT)
    • 5 kV source measures insulation to 10 TΩ.
    • Timed IR PI DAR boost diagnostic insight.
    • Li‑ion battery powers 6 hrs continuous 5 kV.
    • CAT IV 600 V safe; mains run with flat cells.
  • Chauvin Arnoux CA6555 Insulation Tester
    Usually Ships In 6 to 13 Business Days

    Chauvin Arnoux CA 6555 15kv Insulation Tester

    £4,772.46 (ex VAT)
    £5,726.95 (inc VAT)
    • Wide measurement range from 10 kΩ to 25 TΩ
    • Fixed or programmable test voltage from 40V to 15 kV
    • 5mA max. charging current
    • Automatic ratio calculation: DAR / PI / DD / DR (ppm/V)
    • 3 filters to optimize measurement stability
  • Chauvin Arnoux CA6240 10A Microhmmeter
    Usually Ships In 6 to 13 Business Days

    Chauvin Arnoux CA6240 10A Microhmmeter

    £2,329.25 (ex VAT)
    £2,795.10 (inc VAT)
    • Precision low-resistance measurement from 400 µΩ to 400 Ω
    • Ergonomic design with easy-to-read LCD screen
    • IP53 rated for durability in challenging environments
    • Stores 100 measurements with USB data export

Insulation Testers

The purpose of an insulation resistance test is to determine the integrity of the insulating material that surrounds electrical wiring within cables and items of machinery. Copper and aluminium are two of the most widely used materials in wiring electrical devices. To keep the electricity flowing in the right direction and properly insulated, the conductive core is enclosed in an insulating material.

Our Insulation Testers test the integrity of this material, as Insulation can degrade over time due to a myriad of factors, including extreme environmental and temperature conditions (UV, heat and cold), incorrect cable usage (under-voltage or -over-voltage) and chemical or blunt trauma damage (motor oil, plant grime and machine movements), which is why regular insulation testing is essential in maintaining insulation soundness. Test4Less stocks a huge selection of both digital and analogue insulation testers, ideal for domestic, industrial, and commercial usage.