Leica GPR111 Basic Circular Prism with Holder for Total Station Survey
Product Description
The Leica GPR111 Basic Circular Prism with Holder is an essential surveying accessory engineered for high-precision distance measurement using total stations. As a standard circular prism unit developed to Leica’s rigorous standards, the GPR111 delivers reliable and consistent performance for land surveyors, construction engineers, and topographic professionals.
Designed for versatility and durability, this prism comes with a robust holder that ensures secure mounting and easy alignment during field operations. It is ideal for a wide range of applications, including boundary surveys, construction layout, infrastructure mapping, and control surveys. The GPR111 is compatible with Leica total stations and other systems requiring a standard offset prism, making it a cost-effective and reliable choice for both small- and large-scale projects.
Whether you’re working on site layout, grading, or structural monitoring, the GPR111 prism ensures that you get accurate readings, faster setups, and reduced errors, which contributes to better productivity and results on the job.
Key Features
- High-Quality Circular Prism
- Precision-manufactured glass prism delivers stable and accurate measurements.
- Standard Prism Constant
- Offset of -34.4 mm ensures compatibility with a broad range of Leica total stations.
- Integrated Holder
- Includes durable prism holder for secure mounting and optimal targeting alignment.
- Optimized for Leica Total Stations
- Specifically designed for seamless integration with Leica surveying instruments.
- Cost-Effective Solution
- Offers reliable performance at a competitive price point, ideal for budget-conscious operations.
- Weather-Resistant Construction
- Built to withstand harsh environments including rain, dust, and extreme temperatures.
- Easy to Use and Maintain
- Simple setup and low maintenance make it a dependable option for daily use.
Technical Specifications
| Feature | Specification |
|---|---|
| Prism Type | Circular Prism |
| Prism Constant (Offset) | -34.4 mm |
| Diameter | 62 mm |
| Centering Accuracy | ≤ 2.0 mm |
| Mounting Type | With integrated holder |
| Compatible Systems | Leica Total Stations |
| Material | High-precision optical glass |
| Weight | Approx. 250 g |
| Environmental Resistance | Dust and water-resistant housing |
Included in the Package
| Item | Quantity |
|---|---|
| Leica GPR111 Circular Prism | 1 |
| Prism Holder | 1 |
| Protective Packaging | 1 |
| User Instructions (if applicable) | 1 |
Application Areas
- Land Surveying
- Suitable for establishing boundary lines and land parcel mapping.
- Construction Layout
- Used in alignment, staking, and layout of construction sites.
- Civil Engineering Projects
- Ideal for bridge construction, road surveys, and infrastructure planning.
- Topographic Mapping
- Enhances accuracy in elevation and contour measurements.
- Monitoring and Control Surveys
- Applicable in deformation monitoring and other critical structural analyses.
Benefits
- Enhanced Accuracy
- Helps achieve high levels of precision required for professional surveying.
- Field-Proven Reliability
- Backed by Leica’s legacy of optical innovation and engineering excellence.
- Universal Compatibility
- Can be used with all Leica total stations and several other models that use a -34.4 mm offset.
- Portable and Lightweight
- Easy to transport and handle in various site conditions.
- Durable Design
- Withstands environmental wear and tear, ensuring long-term usage.
Comparison Table
| Feature | Leica GPR111 | Generic Circular Prism |
|---|---|---|
| Prism Constant | -34.4 mm | Variable |
| Prism Diameter | 62 mm | 60–64 mm |
| Holder Included | Yes | May not be included |
| Accuracy | ≤ 2.0 mm | ≤ 3.0 mm (typical) |
| Compatibility | Leica Total Stations | Varies |
| Build Quality | High-grade optical glass | Standard |
| Environmental Durability | High | Moderate to high |
Usage Instructions
- Mount the Prism
Attach the GPR111 prism to a compatible prism pole or tripod using the integrated holder. - Align the Instrument
Position the total station to face the prism directly for the most accurate reading. - Select the Correct Prism Constant
Set the total station to a -34.4 mm offset to match the GPR111’s specifications. - Take Measurements
Proceed with distance or angular measurements using your total station. - Store Properly
After use, clean the prism lens and store it in the protective packaging to prevent damage.
FAQs
Q1: Is the Leica GPR111 compatible with all Leica total stations?
A1: Yes, the GPR111 is compatible with all Leica total stations that use a -34.4 mm prism constant, which is a Leica standard.
Q2: Can I use this prism with total stations from other manufacturers?
A2: While the GPR111 is designed specifically for Leica systems, it may be compatible with other total stations that accept a -34.4 mm prism offset. Compatibility should be verified with your equipment manufacturer.
Q3: What is the purpose of the prism constant?
A3: The prism constant (or offset) defines the distance from the prism center to the measurement point. Setting the correct offset in your total station is essential for accurate measurements.
Q4: Is the prism waterproof or dustproof?
A4: Yes, the GPR111 prism is designed for outdoor use and features a sealed, weather-resistant housing suitable for a variety of conditions.
Q5: What is included in the box?
A5: The package includes one Leica GPR111 circular prism with an integrated holder and protective packaging.
Conclusion
The Leica GPR111 Basic Circular Prism with Holder stands as a reliable, high-accuracy reflector tailored for professional surveying applications. Built to Leica’s strict quality standards, the GPR111 provides precise measurement capabilities, robust durability, and seamless integration with Leica total stations. Its circular design ensures stable signal return for consistent and efficient distance calculations in all field conditions.
With a solid build, optimal prism constant, and universal usability across surveying tasks, the GPR111 is the go-to choice for professionals who prioritize reliability and precision. Whether you’re performing routine land surveys or tackling complex infrastructure projects, this prism enhances the accuracy and effectiveness of your measurements.
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