Parameters Frequency: customized 125KHz/250KHz/375KHz/500KHz Read distance: 2〜10cm的, depending on the Reader and the application environment Wipe the number: >100,000 倍存儲: 10 年工作溫度: -20℃〜+ 80℃的包裝材料: ABS大小: 43×30×5mm或50×30×5毫米, can be customized Colors: 紅, 綠色, 藍色, 黃色, 白色, 等等.