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Search results for: 'OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)'

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  1. 1pc USB ACR122U NFC RFID Smart Card Reader Writer For all 4 types of NFC (ISO/IEC18092) Tags + 5pcs
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    1pc USB ACR122U NFC RFID Smart Card Reader Writer ... SKU : ACR122U-A9
    Special Price US$21.77 Regular Price US$24.19
  2. 125 KHZ EM4100 RFID Card Read Module RDM630 UART Compatible to Arduino
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    125 KHZ EM4100 RFID Card Read Module RDM630 UART C... SKU : RDM6300
    Special Price US$7.26 Regular Price US$8.06 As low as US$0.36
  3. EM4305 chip card reader 134 2KHZ reader T5577 chip reader
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    EM4305 chip card reader 134 2KHZ reader T5577 chip... SKU : GZ1342U
    Special Price US$34.56 Regular Price US$38.40
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