and Secure: These RFID IC tags are crafted to withstand harsh conditions, making them perfect for outdoor use in security and guard tour systems. Each tag is waterproof, ensuring functionality in any weather. Advanced NFC Technology: Equipped with 125KHZ frequency, these tags offer quick and reliable data transmission, enhancing efficiency and security management. Optimal Size: With a diameter of 30mm, these tokens are conveniently sized for easy handling and scanning, improving the speed of operations. Wide Compatibility: Compatible with most NFC-enabled devices, these tags streamline processes in a variety of professional settings. These RFID tags meet the needs of extensive security systems and large-scale operations Product name: ID patrol point Card reading time: Less than 100ms Card reading distance: 2.5-10cm (depending on the card reader) Working frequency: 125KHZ Application area: patrol system Color:Black Material:plastic Package Contents: 50 * ID Patrol Point Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.