QR Code Access Control Converter: YB4020 Size: 45x 45 mm, or custom Antenna material: PET+aluminum etched antenna Delivery style: Ntub Dej Inlay, Paste Paper Label Chips: NXP ICODE SLI, Mifare 1K S50, FM11RF08 Frequency: 13.56MHz raws tu qauv qauv: ISO 15693/ISO 14443 Nco: 1024bit Work mode: Read/write Working temperature: -25℃~+75℃ Storage temperature: -40℃~+80℃ Erasable times: 100,000 times Service life: >10 years Read/write distance: 10-20cm (depending on the working environment …