... sensor. 3. Portable and easy operation. Portable GIS Partial Discharge Detector By using UHF 0.3-3GHz principle, attached on the ... for the smart grid and routine maintenance. Features1. This PD detector is for daily patrol inspection, high efficiency, easy operation.2 ... . High sensitivity up to 5PC.8. Wider sense range than ultrasonic sensor, less detection points.9. AC/DC dual power. Full ...