PINTECH RT300M is a high-voltage passive oscilloscope probe with 300MHz bandwidth and fixed 100X attenuation, specially designed for kilovolt-level high-voltage circuit measurement. It withstands 2000V under CAT I and 1500V under CAT II safety standards, featuring ultra-high 100MΩ input impedance and ultra-low 5.5pF input capacitance to minimize loading effect. Equipped with adjustable compensation capacitor, it matches all analog and digital oscilloscopes with input capacitance 10~35pF. Passive design requires no external power supply with universal standard BNC connector. With ultra-low noise and high sensitivity, it accurately captures high-voltage pulses and harmonic waveforms of switching power supplies, inverters, induction heating equipment and industrial high-voltage drivers. Supplied with full set of insulated safety test accessories, it is widely applied in power electronics, inverter power supplies, frequency converters, photovoltaic systems and laboratory high-voltage teaching tests.