
The MIT420/2 from Megger is a MIT400 series CAT IV insulation tester with polarization index, dielectric absorption ratio functions, variable test voltage range and result storage. It is designed for a wide range of applications from electrical installations, cable testing, motor testing, automotive, panel building, avionics, and maintenance. This unit features a variable range that allows any intermediate voltage from 10 volts to 1,000 volts in 10 volt steps where application specific test voltages are required that do not appear in standard ranges. It has a weatherproof tough housing, back stand, and six-cell battery compartment with separate fuse access.
- Stabilized insulation test voltage, live circuit detection and protection
- Auto power down (setup), auto reverse polarity (setup ON-OFF), 15Hz to 400Hz frequency measurement
- 2% test voltage accuracy, pass/fail indication, test voltage, measurement range and voltage display
- Display offers a combination of analogue arc and dual digital readout
Product Codes | |
|---|---|
| Mfr Part No: | MIT420/2-LG2 |
Dimensions:  4.25 x 8.97 x 2.48 inWeight: 1.32 lbVoltage: 50 V, 10 V, 250 V, 500 V, and 1 KVResistance: 200 GΩOperating Temperature: 10°C to 55°C, minimum
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: MIT420/2-LG2
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Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.