TimeCard Premium Transponder MIFARE DESFire EV3. System: MIFARE DESFire EV3. Compatibility: Backward compatible with MIFARE DESFire EV1. Printing: REINER SCT logo, color: matte black. IP protection class: IP 65 waterproof, temperature range: functionality -20°C to 55°C, humidity: 0-95% rH, non-condensing. Dimensions: Cover diameter 34.3 mm, total diameter 35 mm, thickness 4.5 ± 0.1 mm, length 43.4 mm. The TimeCard MIFARE DESFire EV3 Premium Transponder offers a combination of modern and flat design, paired with the highest level of security and quality currently available. The TimeCard Premium Transponder MIFARE DESFire EV3 is made of durable, matte polycarbonate. Its waterproof feature is ensured by the ultrasonic welding of the stainless steel frame. The eyelet cannot break off during normal daily use. Due to the frame, the transponder is detectable in most cases, which is advantageous in the food industry. Data protection and security (CC EAL5 certified) as well as SO ISO/IEC 14443 A 1-4 compliance are guaranteed.