The Megger S1-1568/2 represents the pinnacle of insulation resistance testing, offering up to 15 kV test voltage and 35 TΩ measurement range. Built for EHV applications, it is ideal for use in 765 kV switchyards, transmission utilities, and critical infrastructure testing. Advanced diagnostic functions include PI, DAR, DD, Ramp, Step Voltage, and PDC tests, plus the patented PI predictor for faster results. The innovative RE>Act mode enhances measurement reliability and adds a critical layer of safety by monitoring re-absorption currents after testing. With CAT IV 1000 V safety rating up to 4000 m altitude, adaptive noise filtering, data logging, and remote control, the S1-1568/2 is the ultimate choice for professionals requiring maximum performance, safety, and connectivity.