Nikon DTM-520 total station with 3 angle accuracy and dual compensator on V&H axis to compensate tilt error in any directions. Data transfer to a personal computer or any data collectors is possible with the RS-232C interface, and also memory on board can store up to 8000 points. Unit features dual reading display on both side for more convenient read outs on field. Magnification: 30X Image: erect Distance measurement: 1 Prism: 6600 , 3Prism: 9800 Least count in measurement: Single/Repeat meas. mode: 0.005 Tracking/Coarse meas. mode: 0.02 /0.005 Measurement Display: 8 digit: max. Display Measurement Time: Repeat Measurement mode: 2.5 sec. Tracking/coarse Measurement mode: 0.5 sec. Electronic Angle Measurement: V & H angle Angle accuracy: 3 Measurement time: Less than 0.3 sec. Internal memory: surveying data + coordinates data total 8000 points Data input/output: RS-232C compatible, asynchronous serial Optical plummet: Erect 3x Tilt sensor: Liquid type Compensating range: +/- 3 Handle battery BC-80: output voltage: 7.2 v, capacity: 2.4 ah, …… watsap Djezy