Feature: 1. PCB adopts 1.6mm thick double‑sided plate, 2.0 Oz copper thick, spray tin whole process, to ensures the good flowing performance of the current. 2. Compact appearance, easy to install and simple to use, practical accessory. 3. Large area heat dissipation can last longer, having long service time. 4. Including 5pcs antenna of the package, meeting your different needs. 5. Easy to use, reliable to find interference sources with high accuracy and resolution. Specification: Condition: 100% Brand New Item Type: Magnetic Field Antenna Material: PCB Model: No Interface: SMA outer screw inner hole Package List: 5 x Antenna