The Megger MIT420/2 CAT IV Insulation Resistance Tester gives stable test voltage, clear readings and strong safety performance. It suits maintenance, commissioning and fault-finding on busy sites. You get simple controls and quick results that you can trust.
Fast insulation testing
Select 50, 100, 250, 500 or 1000 V in seconds, then hold steady output to within two percent. When you need a special value, set any test voltage from 10 to 1000 V in one-volt steps. Measure up to 200 GΩ and use PI and DAR modes for trend checks over time. Store results on board for later review.
Reliable continuity and voltage
Check continuity from 0.01 Ω to 1 MΩ with 200 mA or 20 mA test current and lead-null. True RMS voltage to 600 V AC or DC displays with frequency, and the IP54 case resists rough work. Safety circuits watch for live voltage and inhibit tests when needed, while CAT IV 600 V protects you on supply side work.
Long days are easier with the large dual display and analogue arc for trends. The instrument runs from six AA cells and can deliver around three thousand insulation tests at 1000 V per set. It travels well in a compact case and stands up securely on a surface when both hands are busy.
