10pcs RFID Key Fobs 125khz RFID Writable T5577 fob tag T5577 Proximity ID Card Token Key Tag Rewritable for Access Control Systems & Security Lock

Additional Details from the Manufacturer

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More features

• Standard 125Khz ID RFID keyfob, support 125khz proximity ID cards token tag duplication. Frequency : 125kHz; Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years
• 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.
• Product Size: 40*30*4mm(1.57*1.18*0.16 inch). High-Quality Copper Coil inside. Casing Material: ABS Plastic. Waterproof and heat-resistant.
• Chip: ATMEL T5577 (compatible with other universal 125kHz tags). Frequency: 125kHz; 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.
• 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.