5pcs Probe Emc Emi Near Field Probe Conducted Radiation Correction Simple Magnetic Field Probe Kit1. Working frequency: 9K-3G; When in use, keep your hands from the PCB board. 2. Weight: 21 grams 3. Connector: SMA female head (outer teeth and inner hole) Different batches, the product may have color difference Color: blue+green Material: PCB Package Contents: 5 x probes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.