Leica GPH1P Precision Prism – Ultra Accurate Reflective for Swiss Type Total Station System
Product Description
The Leica GPH1P Precision Prism is a high-performance, ultra-accurate reflective prism engineered for use with Swiss-type total station systems. Designed to deliver optimal accuracy and reliability, this precision tool supports a wide range of surveying and geospatial measurement tasks. Whether used for construction layout, boundary mapping, infrastructure design, or high-precision control surveys, the GPH1P ensures dependable and repeatable measurements in any terrain or working environment.
This precision prism is constructed using premium optical glass with an advanced coating for maximum reflectivity and minimal signal dispersion. The housing is robust and weather-resistant, offering durability and longevity for use in rugged field conditions. With a standard Leica-style prism constant and compatibility with Swiss-type instruments, the GPH1P is a professional-grade accessory designed for seamless integration and performance.
Key Features
- Ultra-High Precision
- Engineered for extremely accurate distance measurements, minimizing error margins in surveying tasks.
- Optimized Reflective Coating
- Enhanced return signal strength ensures consistent communication with total stations, even over long distances.
- Compatible with Swiss-Type Total Stations
- Designed specifically to match Leica and other Swiss-type total station systems for smooth and accurate operations.
- Rugged and Durable Housing
- Constructed to withstand environmental elements such as dust, moisture, and temperature fluctuations.
- Standard Prism Constant
- Features a standard offset (commonly -34.4 mm) compatible with Leica total stations and similar systems.
- Ideal for High-Precision Applications
- Supports control surveys, topographic mapping, deformation monitoring, and alignment tasks.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Leica GPH1P Precision Prism |
| Compatibility | Swiss-Type Total Station Systems |
| Prism Type | Single Circular Precision Prism |
| Prism Constant | -34.4 mm |
| Reflective Coating | Anti-reflective, multi-coated glass |
| Centering Accuracy | ≤ 1.0 mm |
| Housing Material | Industrial-grade plastic with metal parts |
| Operating Temperature | -20°C to +50°C |
| Storage Temperature | -40°C to +70°C |
| Weight | Approx. 400 g |
| Mounting Thread | Standard Leica-style mounting system |
Package Contents
| Included Component | Quantity |
|---|---|
| Leica GPH1P Precision Prism | 1 |
| Prism Holder | 1 |
| Padded Protective Case | 1 |
| Instruction Manual (if applicable) | 1 |
Compatibility
This precision prism is suitable for use with:
- Leica Total Stations
- Swiss-Type Instruments with -34.4 mm Prism Offset
- Compatible Surveying Systems using Leica-style mounts
Applications
- Topographic Surveys
- Provides precise data for terrain and elevation modeling.
- Construction Layout
- Used in precise location setting and alignment in infrastructure projects.
- Control Surveys
- Essential in establishing accurate reference points for GIS or construction.
- Engineering and Civil Works
- Ideal for structural layout, road planning, and tunneling projects.
- Monitoring and Deformation Analysis
- Offers consistent measurement data for long-term structural analysis.
Benefits
- Exceptional Accuracy
- Delivers high-resolution measurements to meet the demands of professional land surveyors.
- Robust Field Performance
- Performs reliably in harsh weather, uneven terrain, and high-use conditions.
- Time-Saving Setup
- Quick installation and secure mounting help improve productivity in the field.
- Cost-Effective
- Reduces rework and measurement errors, saving operational time and cost.
- Versatility
- Works across multiple job types and site conditions.
Comparison Table
| Feature | Leica GPH1P | Standard Circular Prism |
|---|---|---|
| Accuracy | High Precision (≤ 1.0 mm) | Medium (1.5–3.0 mm) |
| Reflectivity | Enhanced Coating for Signal Return | Standard Coating |
| Build Quality | Rugged, Survey-Grade Materials | Varies by model |
| Compatibility | Swiss-Type Total Stations | Varies |
| Prism Constant | -34.4 mm | Usually -30 mm to -40 mm |
| Durability | Industrial-Grade | Medium |
Setup & Usage Instructions
- Mount the Prism
- Attach the GPH1P securely to a prism pole or tribrach using the Leica-standard mount.
- Set the Prism Constant
- Ensure your total station is configured to use the -34.4 mm prism constant.
- Align the Prism
- Align the prism with the total station, ensuring proper centering for accurate distance measurement.
- Measure
- Proceed with distance, angle, and coordinate measurements as required.
- Post-Use Maintenance
- Clean the prism surface with a soft cloth and store in the protective case to prevent damage.
FAQs
Q1: Is the GPH1P compatible with non-Leica total stations?
A1: Yes, it can be used with any total station that supports the Leica-standard -34.4 mm prism constant and Swiss-type mounting.
Q2: Can the prism be used in rainy or dusty environments?
A2: Yes, the housing is designed to be weather-resistant and suitable for rugged field environments.
Q3: What is the advantage of using a precision prism like the GPH1P?
A3: It offers significantly improved measurement accuracy and stability over long distances, which is essential for control and high-precision surveys.
Q4: Does the prism require calibration?
A4: The prism itself does not require regular calibration, but ensuring alignment and cleanliness is vital for maintaining measurement accuracy.
Q5: What maintenance does this prism require?
A5: Keep the prism surface clean and store it in its protective case when not in use. Avoid scratches and direct impact to preserve optical performance.
Conclusion
The Leica GPH1P Precision Prism is a professional-grade solution for surveyors who demand accuracy, reliability, and compatibility with Swiss-type total station systems. Its enhanced design, durable construction, and optimized reflectivity ensure excellent performance in all field conditions. Whether used for routine land surveys or critical infrastructure monitoring, this prism delivers precision you can depend on.
With the GPH1P in your toolkit, you can enhance workflow efficiency, reduce measurement errors, and elevate the quality of your surveying output. It stands as a trusted, essential accessory for modern geospatial professionals.











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