For this purpose, megohmmeters, which can provide high DC voltages (typically in ranges from 500 V to 5 kV, some are up to 15 kV) at specified current capacity, are used. Acceptable insulator resistance …

Megohmmeters, also known as insulation testers or “megger testers” measure resistance to determine current leakage and identify faulty insulation. Fluke's digital insulation resistance testers provide …

Discover high-performance megohmmeters for accurate insulation resistance testing. Explore options with multiple test voltages and advanced features.

A megohmmeter is a specialized insulation resistance tester that applies a high DC voltage to a circuit to measure the resistance of its insulation in megohms (MΩ).

What is a Megohmmeter? The megohmmeter (or megger) is an instrument for measuring very high resistances, such as the insulation resistance of electrical cables. A high voltage source is required …

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What is a megohmmeter? An insulation resistance tester for high-voltage DC, leakage current, and dielectric testing on motors and cables.

Apr 21, 2026 · Learn how to use a megohmmeter correctly from your first test. Covers connections, test voltage selection, reading interpretation, and common beginner mistakes.