Fluke 1503 Insulation Resistance Testers

A compact handheld tool designed for basic residential and commercial electrical insulation testing. The device fits in the palm of your hand and delivers essential insulation testing capabilities at an accessible price point.

Key capabilities include measuring AC/DC voltage from 0.1V to 600V, performing insulation tests from 0.01 MΩ to 2000 MΩ, and providing earth-bond continuity testing with 200 mA output. The unit automatically discharges capacitive voltage for user protection and includes live circuit detection to prevent testing when voltage exceeds 30V.

Additional features simplify repetitive testing through a remote probe option and large backlit display. The device includes auto power-off to conserve battery life and operates on four AA alkaline batteries, supporting at least 1000 insulation tests per charge. It accepts optional magnetic hanging systems and carries CAT IV 600V overvoltage category rating.

Package includes test leads, test probes, alligator clips, holster, and remote probe with one-year manufacturer warranty.