The UT-P20 high-voltage oscilloscope probe is calibrated for 1 MΩ input impedance (shunted by 20pF) but adaptable to 10-30pF instruments. Follow safety guidelines, avoiding elevated voltages and explosive atmospheres. Clean with mild detergent, ensuring dryness before reconnecting. For compensation adjustment, connect the probe, apply a 1KHz square wave, and fine-tune using the trimmer for optimal performance when transferring between oscilloscopes or channels.