The Grove 125KHz RFID Reader from Seeed Studio can measure RFID tags within 70mm when using uem4100 cards. The reader is supplied with a detachable, plug-in antenna. You can choose between two output formats, Uart or Wiegand. * Operating voltage: 4.75 to5.25V DC * Working frequency: 125 KHz * Sensing distance(Max): 70mm * TTL output: 9600 baudrate, 8 data bits, 1 stop bit, and no verify bit * Wiegand output: 26-bit packet, 1 even verify bit, 24 data bits, and 1 odd verify bit Seeed provide technical documentation, example projects and software libraries on their product pages. if you require this information please visit this product's page. https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2024-11-08 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2025-04-01 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2025-04-30 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2025-06-04 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2025-07-13 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-04-03 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-04-27 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-05-18 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-06-10 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-07-03 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-08-19 https://elecena.pl/product/27185451/seeed-113020002-grove-125khz-rfid-reader-uart-or-wiegand-outputs 2026-10-05