We Offer Total Station. Ultra long range of 1000mtr without prism and 5000mtr with prism, super faster reflectorless distance measurement High precision distance measurement, prism: 1mm+1ppm, reflectorless:2mm+2ppm High precision angle measurement: 1″ Fiberless and motorless reliable EDM technology Smaller laser spot at far distance Windows CE 5.0 Operating System with familiar PC user interface Professional onboard software: FOIF FieldGenius. Same interface with GNSS receiver TS810 and GNSS A20 perfectly combined as smart station