OMP400 by Renishaw is a 3D electronic probe applied to contact inspection in machine tools. It uses strain gauge technology to capture points and an optical system for data transmission. Main characteristics: - Optical infrared transmission – Probing directions: ± X, ± Y, ± Z - Unidirectional repeatability (2σ): 0.25 / 0.35 µm for probe lengths of 50 / 100 mm - Minimum inspection speed: 3 mm / min