Price / Unit : USD 2,481. Our Respect : Geoland-Surveying.Com Item Specifications : Magnification: 30X Image: Erect Minimum focusing distance: 1.3m/4.3 Angle accuracy: 2/0.3 mgon Angle minimum display reading: 1 Angle units: Switchable between meter or feet, angle degrees or gon Distance measurement: 1 Prism: 9,840, 3Prism: 13,120, 9 Prism: 16,400, and 3,280 with mini prism Distance measurement precision: ±(2mm+2pmm) Distance measuring time: 0.4s+every 0.5s tracking mode Distance measuring time: 0.5s+every 0.5s coarse mode Distance measuring time: 1.2s+every 2.5s fine mode Distance minimum display: 1mm/0.005ft Computer Processor speed: 177Mhz Operating system: Microsoft Windows CE.NET 4.2 Memory: 2 x 64 MB Display: Dual, touch screen panel Internal memory: Card reader on side Data input/output: RS-232C Compensator: Dual axis Compensating range/Accuracy: ±4/1 Laser plummet: Provided Protection against dust and water: IP54 Weight: 6.2kg, 13.6lbs with battery