The Wrist Active Tag is a new tag fashion that specially designed for RFID person management system. The wrist strap adopts special materials and concise design, which makes every wearer feeling at ease. Moreover, the water-proof and disassembly-resistance function make it predominant in special people control, such as psychopaths or prisoners. Battery in Wrist Active Tag also can be replaced which solves the big lifetime problem successfully that active tags meet. Specifications: Range: 0~100 m Frequency: 2.4GHz2.5GHz ISM RF Output Power: 0dBm Power: 12^18UA3V Modulation: GFSK Data Rate: 1Mbps Anti-collision: 100 tags are read simultaneously Operation: Read only Battery Life: more than 4 years Dimension: Typical Application: Individual Locating