Fingerprint sensorZK Optical Sensor (No Film)Resolution500 DPI/256 graySensing Area15×18 mmImage Size280×360 pixelInterfaceUSB1.1/2.0Support O/SWindows 2000/XP/2003/Vista/7/8(32/64bit) and Linux OSOperating Temperature0° - 55°C/32 - 131°FOperating ...