Modern design with a knurled thumb wheel for easy use when taking internal and external depth and step measurements.

Dual readout giving instant inch/metric conversion at the touch of a button.

Zero reset at any point, large clear display, error-free operation, fast response speed. Non-output type.



Resolution: 0.01mm/0.0005".



Extra batteries available - Order Code EDI -904-4000K.

• Measure current up to 100 A without breaking the circuit

• Meter automatically selects AC or DC voltage, up to 600 V

• Resistance measurements up to 1000 Ω plus continuity test

• Work in tight spaces with detachable SlimReach™ probe tips

The Fluke 1503 is a great choice for basic residential and commercial electrical insulation testing. This rugged, compact tool fits in the palm of your hand. The 1503 is the same form factor as the Fluke 1507 but with a few less features. You can count on it to handle the most common tests at a most affordable price. Additional features, like the remote probe, reduce the time needed to perform repetitive testing.
Other useful capabilities:
• Measures AC/DC voltage from 0.1 V to 600 V
• Includes auto-discharge of capacitive voltage for added user protection
• Provides lo-ohms earth-bond continuity (200 mA)
• Simplifies repetitive or hard-to-reach testing with the remote test probe
• Saves battery power with auto power off
• Presents results on a large, backlit display
• Features CAT IV 600 V overvoltage category rating
• Comes with remote probe, test leads, test probes, alligator clips, and one-year warranty
• Accepts optional Fluke TPAK magnetic hanging system to free your hands for other work
• Runs on four AA alkaline batteries (NEDA 15 A or IEC LR6) for at least 1000 insulation tests

Key Features
• A rugged, compact insulation resistance tester for residential and commercial electricians
• Performs insulation tests from 0.01 MΩ to 2000 MΩ
• Offers two insulation test voltages: 500 V and 1000 V
• Includes live circuit detection to prevent insulation test if voltage >30 V is detected
• Measures resistance from 0.01 Ω to 20.00 kΩ

Metric & Inch Reading - Graduation: 0.02mm/0.001"

Incorporating Quadri feature - gives outside, inside, depth and step readings.

Fine adjustment feature allows improved sensitivity of slider movement.

14° vernier face angle reduces parallax.



Satin chrome finish with clear easy read graduations.