The Leica Geosystems NA300 Series Optical Levels have a unique design that can be widely used in the building and construction industry. With a better protected shape, these rugged levels offer increased ergonomic handling whilst ensuring you receive the highest quality results. They have been engineered for daily levelling tasks. Whatever the need, these levels measure with the highest precision and accuracy. A perfectly designed mirror makes it extremely easy to adjust the horizontal level with the highest possible accuracy and confidence. More than 270 Leica Geosystems Service Centres worldwide ensure you work with complete peace of mind, wherever a construction site is located on the globe. Leica Geosystems offers unbeaten service with all of its NA Series levels. The IP54 standard ensures the highest quality measurements even in the most challenging environments. The Leica Geosystems NA324 Optical Level has the following specification: Telescope Standard Deviation for 1km Double Levelling (ISO 17123-2): 2.0mm. Telescope Image: Upright. Magnification: 24x. Objective Aperture: 36mm. Shortest Target Distance From Instrument Axis: <1.0mm. Field of View At 100m: <2.1mm. Multiplication Factor: 100. Compensator Working Range: 15. Setting Accuracy (Standard Deviation): < 0.5in. Sensitivity: 2mm. Horizontal Circle Graduation: 360. Graduation Interval: 1. Operating Temperature Range: 20C to 40C. Weight: 1.5kg.