ZKTeco Bio30R

Sensor Type Semiconductor Resolution 508DPI Aberration Rate <1% Gray Scale 256 gray Collecting Area 18.0 * 12.8 mm / 0.709 * 0.504 inch Effective Collecting Area 18.0 * 12.8 mm / 0.709 * 0.504 inch Image Size 256 * 360 pixels