Features Phase noise and spectrum components can be combined with a low-noise preamplifier for measurement. PCB uses a 1.6 mm thick double-sided board, a copper thickness of 1.5 oz and the entire process of spraying tin to ensure good passage performance for large and small currents. Helps locate and identify potential interference sources in the building blocks of electronic components. With 5-piece probes, you can meet your use and replacement requirements very conveniently. Small size, easy to carry and store, convenient to use and with good performance. Specification: Item Type:Near Field Magnetic Field Probe Material: PCB. Interface: SMA Male Thread, Inner Hole Size: approx. 1.6 mm. Package list: 5 x near-field magnetic field probe. Package List 5 x Near-Field Magnetic Field Probe