Fast, accurate insulation resistance testing for applications ranging from routine maintenance to advanced diagnostics. Every model in this series shares a rugged platform and features PI Predictor™ to halve test time and Re>Act™ mode for more reliable results by eliminating reabsorption errors. Built for tough environments with CAT IV safety, strong noise immunity, and durable casings, these instruments ensure dependable performance in the field. Choose from Essential models for straightforward, go/no-go testing, or Advanced models with expanded diagnostics, onboard memory, and easy data export. Whatever your needs, the MIT Mark 2 Series provides the precision, safety, and reliability trusted by engineers worldwide.