... triggerReading pitch angle-35 to 0°, 0 to +35°(pitch), -50 to -8°, +8 to +50°(skew), -20 to 0°, 0 to +20°(tilt):CurvatureR>15 ... -1 Class 2, GB7247.1-2001Enclosed itemsCable(USB,RS232/TTL,RS485), User Guide, DC power supply (RS232/TTL,RS485) WNL-2000 Stationary Laser Barcode Scanner