Ultra-thin Waterproof Smart Chip NFC Ring RFID 13.56mhz Rewritable Tag IC Badge Clone Cuid Key Copy Available Access Control

Caution:

This link is for a single chip, not dual chips, please check the details page to purchase

The IC chip (13.56Mhz) is a CUID chip. (Please make sure the machine supports writing to CUID card)

Please Use A Professional RFID Duplicator When Copying, If You Need, Please Contact Customer Service.

Specific measurement methods:

Please use a thin line or paper strip to measure the circumference of the finger wearing the ring, and select the number corresponding to the size chart above.

1. Use a thin, non-elastic rope.

2. Make a circle around the place where you wear the ring and tighten the measuring line.

3. Use a ruler to measure the length of the rope.

Precautions:

1. Use thin paper strips or ropes to measure the position of your fingers. Do not measure the finger joints. Make a mark where the paper strips or ropes overlap.

2. During the test, be sure to tighten the paper strip or rope, measure multiple times and take the average, and control the error within 1MM to avoid abnormal differences.

About Size:

No. 6: circumference 53MM, diameter 16.5MM

No. 7: circumference 56MM, diameter 17.3MM

No. 8: circumference 59MM, diameter 18.2MM

No. 9: circumference 62MM, diameter 18.9MM

No. 10: circumference 65MM, diameter 19.8MM

No. 11: circumference 68MM, diameter 20.7MM

No. 12: circumference 71MM, diameter 21.3MM

No. 13: circumference 74MM, diameter 22.2MM

In terms of appearance, it basically matches the picture. If there are slight deviations, please refer to the actual product.

Packaging: RFID smart ring

The ring size error is less than or equal to 1MM, you can choose the size you need! Please refer to the actual product!

About writing cards:

The ID writing area is the inner diameter marking area, and the IC is in the middle position corresponding to the marking (that is, the other side of the circle diameter, please try)

Please see the picture below.