The Megger MIT1525/2 is an Advanced-series 15 kV insulation resistance tester designed for high-voltage equipment, offering a 30 TΩ maximum resistance measurement. Key features include advanced diagnostic capabilities such as Polarization Index (PI), Dielectric Discharge (DD), Stepped Voltage (SV), and ramp tests, along with a high noise immunity of 6 mA. The unit is designed with a, rugged dual-case construction, high-performance guard terminals, and is powered by a rapid-charge Li-ion battery or AC mains.