USB Fingerprint Reader,biometric reader: 1. It support Wiegand 26bit and RS485 output, 2. support USB online upgrade. USB Fingerprint Reader,biometric Reader 1,Introduction 1.CHD200F series fingerprint reader adopt high speed 32bit MCU, advanced high speed fingerprint arithmetic, actualize high speed identify and disposal. 2.Fuctions: anti-jamming, anti-menace, anti-break, so keep the device ...