EM marine card, proximity card is usually for acces control that is available with ISO card and clamshell card. The EM4100 (previously named H4100) is a CMOS integrated circuit for use in electronic ReadOnly RF transponders. Features: 64 bit memory array laser programmable Operating frequency: 100-150KHz On chip voltage limiter

Application: Logistics automation; Anti counterfeiting; Access control; Industrial transponder

Card Physics: Dimension: CR80, 1. 8mm PVC or PET material, be available with offset printing, silk-screen printing Made into other shapes: tag, keychain, glass tag etc.

1) shape: label, ticket, card, glass tag, integrated, wristband, button, keychain tag. 2) readonly card (em4100, em4102, tk4100, em4069) , read / write (t5557) . 3) ISO card could be with hico or loco magnetic strip on 4) frequency: 125khz 5) functions: water proof, flexible, anti-collision etc. 6) application: animal tracking, access control, time attendance