TOPCON GTS-252 TOTAL STATION

SPECIFICATIONS
Telescope
Magnification: 30x
Resolving power: 3.0"
Length: 150mm, Objective aperture: 45mm (50mm for EDM), Image: Erect, Field of view: 1°30' (26m/1,000m), Minimum focus: 
1.3m 
Angle measurement
Display resolutions (selectable): 1" / 5" (0.0002 / 0.001gon)
Accuracy (ISO 17123-3:2001): 2"
Method : Absolute rotary encoder scanning
Detecting system
Horizontal: 2 sides
Vertical: 1 side
Compensator: Dual-axis liquid tilt sensor, working range: ±3', Correction unit: 1” 
Distance measurement
Measuring range
(under average conditions*1)
Mini prism: 900m (3,000ft) 
One prism: 2,000m (6,600ft.) / Under good conditions*2: 2,300m (7,500ft.) 
Three prisms: 2,700m (8,900ft.) / Under good conditions*2: 3,100m (10,200ft.) 
Measurement time*3 Fine: 1mm: 1.2s (Initial 4s) / 0.2mm: 2.8s (Initial 5s), Coarse: 0.7s (Initial 3s), Tracking: 0.4s (Initial 3s)
Interface and Data management
Display: Graphics LCD, 160 × 64dots 
Keyboard: Alphanumeric 24keys
Control panel location: On both faces
Data storage: Internal memory: 24,000pts.
Interface: RS-232C
General
Levels
Circular level: 10' / 2mm
Plate level: 30" / 2mm
Optical plummet telescope: Magnification: 3x, Focusing range: 0.5m to infinity, Image: Erect
Dust and water protection (With BT-G1W): IP54 (IEC 60529)
Operating temperature : -20 to +50°C (-4 to 122°F)
Size / Instrument height: W184 x D172 x H336mm (W7.2 x D6.8 x H13.2in.) /176mm (6.93in.) from the tribrach dish
Weight
Instrument with battery: 4.9kg (10.8lbs)
Plastic carrying case: 3.4kg (7.5lbs), Weight of the carrying case may be slightly different due to specific market.
Power supply
Battery (BT-G1W)
Operating time (Fine mode)
Approx. 27 hours (Single distance measurement every 30 seconds at +20°C / +68°F*4)
Approx. 9 hours (Continuous distance measurement at +20°C / +68°F)
Battery charger: Recharging time: 1.8 hours (+10 to +40°C)
Standard Accessories
• Main unit x 1
• Battery (BT-G1W) x 1 
• Battery Charger x 1 
• Lens cap x 1
• Tool kit with case x 1 
• Plastic rain cover x 1 
• Silicon cloth x 1 
• Carrying Case x 1