viruta opcional: EM4305, T5557, T5577, 5200 Frecuencia: 125KHz Storage Capacity: 512bit Size: 43× 30 × 5 mm o 50 × 30 × 5 mm, Can customized Read and write distance: 2~ 10cm, depending on the reader and the application environment Working temperature: -20℃~+80℃ Materials: ABS Erasable times : >100,000 tiempos de almacenamiento: 10 years Colors: rojo, verde, azul, naranja, amarillo, blanco, Opcional