... for quality!HUA 125khz RFID keys HUA-CP1Electronic chip sealed in the PVC case,waterproof and shock-resist,easy to install, ... These can be installed either on or beneath wall surfaces; Key chain-attachable type personnel / incident card used to identify ... incidents. Its working frequency is 125KHz..track metal parts, components in chemical baths, injected molded plastics, palettes, or containers, our ...