working frequency: 125KHz/13.56MHz/860~960MHz Chip: TK4100 (compatible with EM4102)/FM11RF08 (compatible with NXP MF1 S50) protocol communication: HF ISO 14443A Shell material: ABS Structure: a one-time seal wire + RFID chip + plastic embedded metal shell Size: 21×23×9mm/steel wire length <250mm,,steel wire diameter 1.5mm Read/write distance: < 6cm (according to the readers and application environment) operationem temperatus: -20℃~+60℃ Storage temperature: -45℃~+85℃ Relative …