100 x 125 KHz RFID Key Ring Access Control Card Key Ring for Door Access Control System TK4100 / EM4100 (Red)

Product Functionality 1. Waterproof RFID key allows access to proximity door control. 2. Each keyring has a unique identification number. 3. Suitable for 125KHZ card reader and the reading distance is 0-10cm. 4. Widely used in apartments, offices, parks and other places. 5. ABS material. 6. Read-only, not writable. Product Description 1. Material: ABS waterproof material. 2. Support: read-only, non-writable. 3. Working frequency: 125 KHz 4. Chip: TK4100 / EM4100 chip. 5. Each keyring has a metal key ring and a unique identification number. 6. Standard: . 7. Package includes: key rings.