High Voltage Insulation Testers & Megohmmeters

  1. Kewtech KEW3125A High Voltage Insulation Tester (5kV)
    Kewtech logo
    2 In Stock
    Free UK Delivery
    Kewtech KEW3125A High Voltage Insulation Tester (5kV)
    (no reviews)
    £838.80 £699.00
    • The UK's smallest and lightest high voltage insulation tester
    • Selectable test voltages to 5000V (5kV)
    • Measure insulation resistance to 1TΩ, plus perform DAR and PI testing
    699 Reward Points
    Price Match Guarantee
    KEWIT3
  2. Megger MIT2500 Industrial/Utility High Voltage Insulation Tester-2.5kV
    Megger logo
    5 In Stock
    Free UK Delivery
    Megger MIT2500 Industrial/Utility High Voltage Insulation Tester-2.5kV
    (no reviews)
    £1,018.80 £849.00
    • Handheld, portable insulation tester
    • Variable test voltage from 50 to 2500V
    • Memory storage with Bluetooth wireless connection
    849 Reward Points
    Price Match Guarantee
    1004-745
  3. Megger MIT515 5kV Insulation Resistance Tester
    Megger logo
    In Stock
    Free UK Delivery
    Megger MIT515 5kV Insulation Resistance Tester
    (no reviews)
    £2,992.80 £2,494.00
    • Megger's entry-level HV insulation resistance tester
    • Test resistance levels to 10TΩ
    • IR, PI and DAR diagnostic testing
    2494 Reward Points
    Price Match Guarantee
    1001-935
  4. Megger MIT525 5kV High Voltage Insulation Resistance Tester
    Megger logo
    5 In Stock
    Free UK Delivery
    Megger MIT525 5kV High Voltage Insulation Resistance Tester
    (no reviews)
    £3,662.40 £3,052.00
    • Tests resistance levels up to 10TΩ
    • Integrated memory storage and USB download to PC
    • 6 hour battery life with rechargeable batteries and optional mains power
    3052 Reward Points
    Price Match Guarantee
    1001-939
  5. Fluke 1550C Insulation Resistance Tester (5kV)
    Fluke logo
    3 In Stock
    Free UK Delivery
    Fluke 1550C Insulation Resistance Tester (5kV)
    (no reviews)
    £4,053.60 £3,378.00
    • Test voltage up to 5000V
    • Voltage breakdown detection alerts 
    • Selectable test voltages in 50 V steps from 250 to 1000 V, and 100 V steps above 1000 V
    3378 Reward Points
    Price Match Guarantee
    FLUKE1550C
  6. Fluke 1550C 5kV Insulation Resistance Tester with IR3000FC Connector
    Fluke logo
    Only 1 In Stock
    Free UK Delivery
    Fluke 1550C 5kV Insulation Resistance Tester with IR3000FC Connector
    (no reviews)
    £4,053.60 £3,378.00
    • Measure resistance up to 1TΩ
    • Maximum selectable test voltage: 5kV
    • Use the IR3000FC Connector to communicate with the Fluke Connect App
    3378 Reward Points
    Price Match Guarantee
    1550C+IR3000FC
  7. Megger MIT1025 10kV Insulation Resistance Tester
    Megger logo
    5 In Stock
    Free UK Delivery
    Megger MIT1025 10kV Insulation Resistance Tester
    (no reviews)
    £4,248.00 £3,540.00
    • High specification insulation resistance tester
    • Housed in its own protective casing
    • Wide variety of testing types and in-built memory
    3540 Reward Points
    Price Match Guarantee
    1001-943
  8. Fluke 1555 Insulation Resistance Tester (10kV)
    Fluke logo
    Only 1 In Stock
    Free UK Delivery
    Fluke 1555 Insulation Resistance Tester (10kV)
    (no reviews)
    £4,558.80 £3,799.00
    • Test resistance up to 10KV and 2TOhms
    • Selectable test voltages
    • Guard system prevents leakage of surface current
    3799 Reward Points
    Price Match Guarantee
    FLUKE1555
  9. Fluke 1550C/Kit Insulation Resistance Tester Kit (5kV)
    Fluke logo
    Only 1 In Stock
    Free UK Delivery
    Fluke 1550C/Kit Insulation Resistance Tester Kit (5kV)
    (no reviews)
    £4,558.80 £3,799.00
    • Test voltages up to 10 kV provides solutions for all applications
    • Voltage breakdown detection alerts 
    • Selectable test voltages in 50 V steps from 250 to 1000 V, and 100 V steps above 1000 V
    3799 Reward Points
    Price Match Guarantee
    Fluke 1550C/Kit
  10. Megger MIT1525-UK High Voltage DC Insulation Resistance Tester - 15kV
    Megger logo
    4 In Stock
    Free UK Delivery
    Megger MIT1525-UK High Voltage DC Insulation Resistance Tester - 15kV
    (no reviews)
    £5,514.00 £4,595.00
    • Measure insulation resistance to 30TΩ with up to 15kV test voltage
    • Built-in memory storage
    • Powered by rechargeable batteries
    4595 Reward Points
    Price Match Guarantee
    1002-907
  11. Megger S1-1068-UK Diagnostic Insulation Tester 10kV, 6mA test current, 8mA immunity
    Megger logo
    Only 1 In Stock
    Free UK Delivery
    Megger S1-1068-UK Diagnostic Insulation Tester 10kV, 6mA test current, 8mA immunity
    (no reviews)
    £5,868.00 £4,890.00
    Megger S1-1068-UK Diagnostic Insulation Tester 10kV, 6mA test current, 8mA immunity
    4890 Reward Points
    Price Match Guarantee
    1003-008

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About High Voltage Insulation Testers & Megohmmeters

All electrical insulation is susceptible to degradation over time. At the start of its service life, the insulation applied to an electrical system - whether it's a common appliance such as a kettle or a high-powered device like a transformer - should be strong enough to make leakage current non-existent or negligible and ensure that the electrical installation/appliance can be used safely.

However, insulation will degrade over time leading to more potential leakage current. As such the system becomes less and less safe over time, and this is exactly why insulation resistance tests must be regularly carried out to ensure that the resistance of the insulation is sufficiently high.

We have a range of different insulation testers depending upon the application they are to be used in.

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