... U-Disk, RS232/485, optional GPRS·Large-screen color LCD display, 3.5 inches TFT.·High-definition ... , a graphical interface can show bardian and color photographs of staff.·Various identification modes to meet ... 3 years when no currentLCD3.5-inch TFT color, 320*240 PixelsVerification mode1: N, 1:1FRR<0. 01 ... notice etcPower supplyDC12V, 25W, 2A (AC 100V to 240 V, 50 to 60 Hz )Backup battery (optional ...