Description
125kHz RFID ID Card — EM4100 / TK4100
White PVC contactless ID card listed for 125kHz RFID readers compatible with TK4100, EM4100 or EM4102 card types.
- Card type: TK4100 / EM4100 / EM4102, as listed
- Operating frequency: 125kHz
- Tested reading range: 2.5–10cm, as stated in the source; actual range depends on the reader and conditions
- Dimensions: 86 × 54 × 0.8mm
- Material / colour: white PVC
- Weight: 5g ± 0.5g
- Temperature range: −25 to +70°C, as listed
The listing describes the card as water- and dust-resistant and claims resistance to immersion in salt water, alcohol, oil, 10% HCl and ammonia. These are source-listed claims; no test method or rating is provided.
Choose a reader that explicitly supports this 125kHz card type; 13.56MHz NFC cards and other 125kHz formats are not automatically compatible. EM4100-type IDs are read-only identification data. They do not provide strong authentication or access security by themselves; do not use this card alone as a security credential.
