Fluke 1503 Insulation Resistance Tester

Fluke Electronic

Fluke authorised distributor and calibration house.

The Fluke 1503 insulation resistance testers are rugged, compact, reliable & ideal for troubleshooting and preventive maintenance applications.

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Usually Stock or Short Lead Time

£ 246.75 rrp £ 329.00

save 25%

(£ 296.10 inc VAT.)

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For basic electrical insulation testing, choose the compact Fluke 1503 - a rugged, compact tool that handles the most common tests at a most affordable price. The remote test probe makes it easy to perform insulation and continuity tests in awkward area.

The Fluke 1503 enters the “Sleep mode” and blanks the display if there is no function change or button press for 10 minutes. This is done to conserve battery power. The 1503 comes out of Sleep mode when a key is pressed or when the rotary switch is turned.


Repetitive or hard-to-reach testing is easy with the remote test probe.
Live circuit detection prevents insulation test if voltage > 30 V is detected.
Auto-discharge of capacitive voltage for added user protection.
Save battery power with auto power off.
Read measurements easily with large, backlit display.
CAT IV 600 V overvoltage category rating for added user protection.
Accepts optional Fluke TPAK magnetic hanging system to free your hands for other work.

Fluke 1503 Specifications:

  • Insulation test range: 0.1 MΩ to 2000 MΩ.
  • Test voltages: 500V, 1000V.
  • Test voltage accuracy: + 20%, - 0%.
  • AC / DC voltage: 0.1V to 600V.
  • Resolution: 0.1 V.
  • 200 mA Continuity.
  • Over-range capability: 110% of range.
  • Power: Four AA batteries (NEDA 15A or IEC LR6).
  • IP Rating: IP40.
  • Shock: 1 meter drop per IEC 61010-1 2nd Edition.
  • Dimensions: 5.0 cm H x 10.0 cm W x 20.3 cm L (1.97 in H x 3.94 in W x 8.00 in L).
  • Weight: 550g (1.2 lb).
  • Fluke 1503 Warranty: 1 year.


Includes: Fluke 1503 Insulation Tester, Remote Probe, Test Leads, Test Probes, Alligator Clips, Holster, User Documentation.

Insulation Test Voltages 500V, 1000V
Calibration Certificate No

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Fluke 1503 Insulation Resistance Tester