Features:Good Smoothness: The PCB near-field antenna adopts 1.6mm double-sided board, the copper thickness is 2.0oz, and the tin is sprayed to ensure good current flow. The Type III near-field probe is included, improved and improved, and has a fully shielded structure. It is recommended to use a radio frequency amplifier with a gain of about 30dB. Fully shielded magnetic field probe greatly inhibits electromagnetic interference in the outdoor environment, improves the dynamic range of the whole system, and helps to improve the accuracy of position detection. The noise level is low. Magnetic field probe is used to detect magnetic field near printed circuit board, chassis leakage test, interference source detection, low frequency conduction rectification experimentElectric field probe is used to detect electric field near the field that is perpendicular to the wire when it is used. Specification:Name: Near Field Magnetic Field ProbeMaterial: PCBInterfejs: SMA Female Connector Size: Approx. 1.6mm/0.1"Package Included:6*Magnetic Field Antenna Probe, with Storage Box