Manual Mode — Locks lines for use at any angle. Includes Positioning Device with strong magnets. Laser unit: Osram. Wavelength: 520nm. Beam Accuracy: H/V Line ±3mm/10m, Expanded Angle: H&V 360°.Max. working distance: 30m(without detector).Power Supply: 4xAA battery, Operating time: 1C: 8h /2C: 4h.Ingression Protection Rate: IP54