Choose the wrong insulation tester and you’ll either waste money on capabilities you don’t need or get stuck with equipment that can’t handle the job. Both happen often. A residential electrician buying a $3,000 5-kV tester to verify branch circuits, or an industrial maintenance team trying to test 13.8 kV motor windings with a 1 kV handheld —… Read More: How to Choose an Insulation Tester: A Complete Buyer’s Guide »
If you’ve spent any time shopping for an insulation tester, you already know the market is flooded with options. But when it comes to professional-grade instruments trusted in the field, three names keep coming up: Fluke, Megger, and Hioki. Each brand has built a serious reputation — and each takes a meaningfully different approach to what an insulation… Read More: Fluke 1587 FC vs Megger MIT430/2 vs Hioki IR4056-20: Which… »
A megohmmeter sitting on a shelf for two years still reads numbers when you pull the trigger. The display lights up. The needle deflects (or the digital readout shows MΩ). The test seems to work. But the readings could be off by 30% and you’d never know — until an audit catches it, a critical test produces wrong… Read More: Insulation Tester Calibration: Why, When, and How »
A megohmmeter puts 500 to 5,000 V onto whatever you connect it to. That’s the part people forget. It’s a test instrument, but it’s also a small high-voltage source with a capacitive load hanging off the end of it. The instrument work is simple. Isolate, select a voltage, connect, hold, read, discharge. What separates a clean test from… Read More: How to Use a Megohmmeter: Setup, Test, and Safe Discharge »
Every megger review article online reads like a sponsored post. “Fluke is the best. Megger is also the best. Also here are five other brands that are the best.” That’s not useful when you’re trying to decide which instrument to actually buy. This guide takes a different approach. It matches megohmmeters to the kind of work you actually… Read More: Best Megohmmeters for 2026: A Practical Buyer’s Guide »