Parameters Frequency: customized 125KHz/250KHz/375KHz/500KHz Read distance: 2~ 10cm, depending on the Reader and the application environment Wipe the number: >100,000 keer Opslag: 10 jaar werk temperatuur: -20℃~+80℃ Verpakkingsmaterialen: ABS Size: 43× 30 × 5 mm of 50 x 30 x 5 mm, can be customized Colors: rood, groen, blauw, geel, wit, enz.