Metal Detector Electronic Kit DC 3V-5V 60mm - DIY Kit

  DIY Kit Metal Detector Kit Electronic Kit DC 3V-5V 60mm Non-contact Sensor Board Module DIY Electronic Part Metal Detector Working voltage: 3~5V PCB size: 92 × 60mm Product weight: 17g Precautions: 1Compared with the list of components and the number and specifications of id