The enhanced model of KTS-440R. More communication function makes surveying easier.   ■ Large memery Internal memory: 2M storage .able to store 24000 point. External: 2G SD card . (for the model with SD card function) No worry for short of memory space.         ■ Convenient data management Easily operation on data adding, deleting, modifying, transferring.Total station can be recognized as a flash memory disk by computer.           ■ Long distance measurement With prism 5Km~10Km.Without prism 350m-400m (optimal). Is there any target that you can not put prism on? Now use refletorless laser!     ■ Abundant surveying programs Various of surveying programs onboard:angle offset, angle repetition, dual-distance offset, 3-D coordinate measurement, remote Elevation, Missing line, staking-out, road design, area calculation, volume calculation and reference line.       ■ Absolute encoding disc Never to manually rotate EDM to do angle initialization.Don’t fear about suddenly power-off. Absolute encoding, absolute accurate.           ■ Long time operation Two pcs of rechargeable batteries. Battery life can support 8 hours distance measurement or 24 hours continuously angle measurement.