- Accuracy 0.055% (> 15") | Wireless functionality for Android™ devices | High-visibility, low-power, backlit display | User-friendly with completely redesigned, highly intuitive graphical user interface | Adjusted to local gravity for highest possible accuracy | Increased accuracy: 0.04% of measured value minimum 5" (arc seconds) | Extreme versatility, allows measurement of both parallelism and perpendicularity, e.g. vertical rails or presses