Topcon GTS-721 total station

Brand Name	Topcon		Place of Origin	China
Model Number	GTS-721

Topcon  GTS-721 total station with 1” angle accuracy. Data transfer to a personal computer or any data collectors is possible with the RS-232C interface, and also a card reader on the side for data recording on-board. 320 BK internal memory can store up to 5000 points and transfer to PCMCIA or computer and that will save you the purchase of data collectors. Unit has dual reading display on both side for more convenient read outs on field. Dual compensator on V&H axis will eliminate tilt error in any directions. Unit is features with IP-65 Waterproof/Dustproof rating, which is suitable for use in the toughest environments. 

Magnification: 30X
Image: Erect
Minimum focusing distance: 1.3m/4.3’
Angle accuracy: 3”/1 mgon
Angle minimum display reading: 1”/ 5”
Angle units: Switchable between meter or feet, angle degrees or gon
Distance measurement: 1 Prism: 8,200’, 3Prism: 10,800’, 9 Prism: 13,700’
Distance measurement precision: ±(2mm+2ppm)
Distance measuring time: 4s+every 0.5s tracking mode
Distance measuring time: 4s+every 0.5s coarse mode
Distance measuring time: 5s+every 2.5s fine mode
Distance minimum display: 1mm/0.005ft
Display: Dual

Internal memory: Surveying data + coordinates data total 5000 points and card reader on side
Data input/output: RS-232C
Compensator: Liquid dual axis
Compensating range/Accuracy: ±3’/1”
Optical plummet: Erect 3X
Weight: 6.9kg, 15.2lbs with handle battery

GTS-721 Total station
Topcon Ttribrach
BC-30 Side battery
Charger BC-30
Original carrying case
Owner’s Manual


This unit will be cleaned and calibrated for 8 calibrations points (V&H collimation, Double centering, Optical Plummet, line of sight, plunge, tilt sensor, bubbles, cross hair) in our service department prior to shipping.
All batteries will be checked out to confirm that they have at least more than half-life otherwise will be re-celled.
EDM will be base line tested to make sure it is reading good distances according to their specs.
All these adjustments and calibrations are provided to all customers at no extra charge.
Units will leave here in a good cosmetic condition as well.
In other word any unit shipped out to customers is basically ready to work at field.