Topcon GM52 SDR1 Total Station – High Precision for Professional Surveying
The Topcon GM52 SDR1 is a premium manual total station engineered for accuracy, durability, and efficiency in construction, land surveying, and civil engineering projects. As part of Topcon’s GM-50 series, it combines Japanese precision with rugged design to meet the demands of harsh job sites.
Key Features
- 2″ Angular Accuracy: Ensures precise angle measurements for reliable survey data.
- Dual-Axis Compensation: Corrects instrument tilt errors for stable measurements on uneven terrain.
- Powerful EDM System: Measures up to 4,000m with prism (1.5mm+2ppm accuracy) and 500m reflectorless (2mm+2ppm accuracy).
- 30x Magnification Telescope: Delivers clear, sharp target viewing with 2.5″ resolution.
- IP66 Rating: Dustproof and waterproof, operates in temperatures from -20℃ to +60℃.
- Long Battery Life: BDC46C battery provides up to 14 hours of continuous use.
- Ample Storage: 50,000 points internal memory, expandable via 32GB USB drive.
- Dual Backlit LCD: Easy-to-read display in bright sunlight or low-light conditions.
Full Technical Specifications
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Optical System
- Magnification: 30x
- Objective Aperture: 45mm (EDM: 48mm)
- Image: Erect
- Field of View: 1°30′ (2.6m at 100m)
- Focus Range: 1.3m to infinity
Angle Measurement
- Accuracy: 2″ (IACS calibrated)
- Minimum Display: 1″/5″
- Compensation: Dual-axis, ±6′ range
Distance Measurement
- Prism Mode: 1.3–4,000m, accuracy 1.5mm+2ppm
- Reflectorless Mode: 0.3–500m, accuracy 2mm+2ppm
- Reflective Sheet Mode: 1.3–500m
- Measurement Time: Fine 0.9s, Tracking 0.4s
Environmental & Physical
- Protection Class: IP66
- Operating Temperature: -20℃ to +60℃
- Weight: 5.1kg (with battery)
- Construction: Magnesium alloy body
