The Details of our ISO9001 and CMC Certificated Total Station TTS105 are as follows: Features: 1. Handy EDM head 2. Extended internal memory (max.50000points) 3. High accuracy and long measuring range 4. Complete application programs 5. Convenient data management system 6. Electronic auto compensator 7. Long-time working battery 8. Superior waterproof and dustproof 9. Laser centering and Laser directing 10. Reflectorless distance measurement Technical Specification: ANGLE MEASUREMENT(Hz, V) Accuracy 5"Method Grating DiskMin. Reading 1"Standard Deviation 2"Compensation Vertical AxisCompensating Range ±3Level Parameter Circular Level 8'/2mm Plate Level 30/2mmTELESCOPE Magnification 30×Image ErectField of View 1°30(2.6%)Min. Focus 1.5mOptical Aperture 45mmDistance Measurement Reflector : Measurement Range (Good Condition) 1 Prism 4000m Measurement Accuracy ±(3+2ppm·D)mm Measurement Time Fine Measurement Mode (Repeat) About 1.8sec. (first time 2.5sec) Tracking Measurement Mode About 0.4sec. (first time 1.5sec)Atmospheric correction: ppm input range 499ppm +499ppmstep 1ppm Prism constant correction -99mm +99mm (step 1ppm)Reflectorless : Measurement Range (Kodak White) 100M Measurement Accuracy ±5mm Measurement Time Fine Measurement Mode (Repeat) About 1.8sec. (first time 3sec) Tracking Measurement Mode About 0.5sec. (first time 2sec)DISPLAY Screen Type 4-line dot matrix LCD with backlightDisplay Unit Double SidesPHYSICAL SPECIFICATIONS Battery Power : Voltage DC7.2V Capacity : Distance and Angle Measurement Angle Measurement only Lithium battery BDC40L 4.0AH 4.5h30hTemperature Range: Storage Temp. -40+60 Operating Temp. -20+55Dimension 190×210×350mmWeight 6kgOTHERS Interface RS232CWaterproof /Dustproof Protection IP66 Standard Delivery 1.Main unit 2.Data cable 3.Rechargeable battery 4.Software 5.Hard shell carrying case 6.Tool kit 7.Dryer 8.Lint-free cloth 9.Brush 10.Instruction manual 11.TIME certificate 12.Warranty card Optional Accessories 1.Single prism 2.Triple prism 3.Tripod