World’s Highest Precision Digital Level • 0.2mm Precision* • Auto Focus* • 2.5 sec High-Speed Measurement • 20lx. Minimum Brightness • Dual-axis Tilt Sensor • Remote Trigger for Wireless Operation • Line Leveling Program • 10,000 Points Internal Memory • SD/SDHC Card / USB Port Technologies for Precision The DL-501 series incorporates an array of advanced technologies to achieve the highest leveling accuracy in the industry. • RAB-Code technology, superior optics, market-proven compensator and magnetic damping system ensure precise staff readings. • Dual-axis compensator notifies instrument tilt, Remote Trigger prevents accidental jolts, and Auto Focus (DL-501 Advanced model) eliminates incomplete focusing. These unique technologies remove major error factors. • Even in the dim light conditions, if the staff surface brightness is 20lx or more, the DL-501 series can read the staffs without compromising accuracy. Measurement Programs Onboard program supports line leveling and data recording. • Methods: BF, BFFB, BBFF, BFBF, aBF, aBFFB, aFBBF • Up to two intermediate sights can be measured in each set. • Adjustable tolerances and error calculation functions allow for on-site accuracy checks.