U990-C is an innovative biometric fingerprint reader for time attendance and access control applications, Support optional backup battery, GPRS and Wi-Fi. Optional built-in 2000 mAh battery can eliminates the trouble of power-failure. The U990-C features the fastest commercial-based fingerprint matching algorithm and ZK high-performance, high-image quality optical fingerprint sensor. The 3 inch TFT can display more information vividly, including fingerprint image quality and verification result etc. TCP/IP communication is standard and make sure the data transmission between terminal and PC can be easily done within several seconds.