Package includes: 10pcs black 125kHz T5577 key fob. Standard 125Khz ID RFID keyfob, support 125khz proximity ID cards token tag duplication. Note: These are blank key tags without pre-programmed card numbers. You cannot directly add them to RFID locks or use a card reader to read them. Before using, please write data(card numbers) into them by a 125kHz RFID card writer first.
Applications: Hotel key chain, Access control systems, time attendance system, ticketing, packing card. This T5577 proximity key card can copy duplicate em4100 TK4100 ID Card Keychains tags.
Chip: ATMEL T5577 (compatible with other universal 125kHz tags). Frequency: 125kHz; Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years. It's rewritable, and it can write in 125khz id format and H-ID WG 125khz format, can be customised to 26-bit Prox format. Compatible with T5567 T5577 EM4305.
Writable & Rewritable: can be writed by 125KHz RFID writer/copier, DO NOT work with ONITY SYSTEM and Proxmark3 RDV4. It can be erased and written 100,000 times. Suitable for making new and back-up tags. More product info and FAQ is listed in the Product Description. Please read them before purchase.