The Topcon Sokkia 360° Prism 5/8″ Mount Total Station Reflector, engineered as a direct replacement for the ATP1 prism, delivers high-precision measurements and enhanced signal reflection in all directions. Designed for seamless integration with robotic total stations, this prism is ideal for land surveying, construction layout, and topographic applications. Its 360-degree reflective capability, sturdy construction, and high-accuracy optical performance make it a dependable choice for professionals demanding consistent results in challenging field conditions.
Key Features
- Full 360-Degree Reflection
Delivers consistent and accurate angle and distance readings from all directions, eliminating the need for manual realignment. - High-Precision Optical Design
Built with multiple precision ground corner cubes to ensure excellent signal return and low deviation. - Prism Constant: -7 mm
Compatible with standard robotic total stations requiring a -7 mm offset. - Universal 5/8″ x 11 Female Thread Mount
Allows easy installation on most surveying poles, tripods, and tribrachs. - ATP1 Replacement
Functions as a reliable, cost-effective substitute for the Topcon ATP1 prism. - Rugged Housing
Built with durable, weather-resistant materials for long-term use in harsh field environments.
Technical Specifications
| Specification | Detail |
|---|---|
| Reflector Type | 360° Prism |
| Mount Type | 5/8″ x 11 Female Thread |
| Prism Constant | -7 mm |
| Number of Corner Cubes | 6 |
| Construction | Rugged ABS housing with metal core |
| Accuracy | ±5 arc seconds |
| Prism Size | 25 mm |
| Tracker Range | Up to 400 meters (with compatible robotic station) |
| Operating Temperature Range | -30°C to +65°C |
| Storage Temperature Range | -40°C to +75°C |
| Dimensions | 105 mm x 100 mm |
| Weight | Approx. 300 grams |
Applications
- Construction Layout and Control
Suitable for layout tasks on job sites where fast, accurate positioning is critical. - Land and Topographic Surveying
Ideal for collecting geospatial data in open terrain and populated regions. - Civil Engineering
Supports roadworks, utilities planning, and earthworks requiring high-accuracy data. - Geodetic Monitoring
Facilitates real-time deformation and movement detection in structures and terrain. - Robotic Total Station Tracking
Ensures consistent signal lock and rapid repositioning capabilities for automated instruments.
Benefits
- Eliminates Downtime
Full 360° coverage ensures uninterrupted tracking by robotic total stations. - Reduces Manual Effort
Operators do not need to reposition the prism constantly, improving workflow efficiency. - Weatherproof and Field-Tested
Designed for heavy-duty field use in all weather conditions without compromising accuracy. - High Return on Investment
Durable build and long lifespan reduce the frequency of replacements. - Compatible with Industry Standards
Fully compatible with Topcon and Sokkia total stations and poles.
Comparison Table – Topcon ATP1 vs. Replacement
| Feature | Topcon ATP1 | This Replacement Prism |
|---|---|---|
| Prism Constant | -7 mm | -7 mm |
| Thread Type | 5/8″ x 11 Female | 5/8″ x 11 Female |
| Compatibility | Topcon, Sokkia | Topcon, Sokkia |
| Number of Corner Cubes | 6 | 6 |
| Accuracy | ±5 arc seconds | ±5 arc seconds |
| 360° Coverage | Yes | Yes |
| Material | Reinforced Polymer | Rugged ABS with Metal Core |
| Cost-Effective | No | Yes |
FAQs
Q1: Is this prism compatible with both Topcon and Sokkia robotic total stations?
A1: Yes, it is fully compatible with robotic total stations from both Topcon and Sokkia that use a -7 mm prism constant and 5/8″ x 11 thread.
Q2: What is the advantage of using a 360-degree prism?
A2: A 360-degree prism reflects signals from all directions, allowing robotic total stations to maintain a lock without repositioning the prism, increasing efficiency and reducing errors.
Q3: Can this prism be used in all weather conditions?
A3: Yes, its weather-resistant build and sealed construction make it suitable for all field conditions, including rain, snow, and high temperatures.
Q4: How is this prism different from a standard single-faced prism?
A4: A standard prism reflects signals from one direction only, whereas a 360-degree prism allows for continuous tracking from any direction, ideal for dynamic or fast-paced site conditions.
Q5: Does this product include a carrying case?
A5: Yes, it includes a protective pouch for safe transport and storage.
Conclusion
The Topcon Sokkia 360° Prism 5/8″ Mount Total Station Reflector is an essential, precision-engineered accessory for surveyors and construction professionals seeking efficient and accurate performance. With its robust design, full-direction signal reflection, and direct compatibility with ATP1 systems, it streamlines operations and ensures dependable measurements in every field condition.
Whether you’re upgrading your existing equipment or replacing a worn ATP1 prism, this reflector is a high-value, professional-grade solution for demanding surveying environments.














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