2.4G Active Student Card（ZL-HT22）
The 2.4G Active Student Card is a smart terminal product used for attendance, positioning and consumption of smart Campus. It uses 2.4GHz long-distance communication feature of 2.4GHz electronic student ID card to realize non-perceived attendance.with the 13.56MHz module to realize the campus card function.
Product Functions:
Long-distance Attendance System, Campus positioning, Campus all-in-one card.
Product Features:
- Standard IC card size with a thin card body design;
- Supports dual-band 13.56MHz and 2.4GHz, with the 2.4GHz module mainly used for mid-range identity recognition, while the 13.56MHz module is for close-range payment functions or other identity recognition functions;
- Waterproof design to prevent the 2.4G radio frequency section from being affected by water ingress;
- The maximum recognition distance can reach 80 meters;
- Equipped with an internal lithium battery with a lifespan of over 3 years.
Product Specifications:
| Name | Technical Specifications |
| Entity Size | 86mm*54mm*4.1mm |
| RFID Mode | 2.4GHz, 13.56MHz |
| Maximum Output Power | 0dbm |
| Battery | High-performance battery with a working life of over 3 years. |
| Communication Distance | 3 meters to 80 meters |
| Short-Range Card Reading distance | 2 centimeters to 10 centimeters |
| Read-Write Time | 1 millisecond to 2 milliseconds |
| Erase-Write Cycles | More than 100,000 times |
