When it comes to high-accuracy surveying projects—from boundary mapping to construction layout—the GPR111 prism stands out as a cost-effective, durable solution designed to elevate field performance. Engineered for seamless integration with total stations (especially Leica systems), this circular prism delivers consistent results even in harsh environmental conditions.
What Does the GPR111 Prism Do?
At its core, the GPR111 prism is a critical surveying accessory that reflects laser signals from total stations, enabling precise distance and angle measurements.
Its key functions include:
Supporting long-range measurements (up to 2,500 meters / 8,200 feet) for large-scale projects like road surveys or infrastructure mapping.
Ensuring stable alignment via its integrated holder, streamlining setup for boundary surveys, control surveys, and topographic mapping.
Delivering consistent readings for deformation monitoring and structural analysis, where precision is non-negotiable.
Key Advantages of the GPR111 Prism
Why choose the GPR111 prism for your surveying toolkit? Here’s what sets it apart:
Precision You Can Trust
Its high-quality glass prism (often copper-coated for enhanced reflectivity) and standard prism constant (-34.4 mm or +0.0 mm, depending on model) ensure centering accuracy of 2.0 mm and beam deviation as low as 5 arcseconds—critical for professional-grade results.
Durability for Field Conditions
Sealed in a robust red polymer holder, the GPR111 resists rain, dust, and extreme temperatures. Its lightweight design (yet rugged construction) makes it ideal for daily use across challenging job sites.
Versatile Compatibility
Optimized for Leica total stations, it also works with most systems requiring a standard offset prism—making it a flexible choice for teams using mixed surveying equipment.
Cost-Effective Reliability
Backed by rigorous engineering standards (and often offered as a budget-friendly alternative to premium models), the GPR111 balances performance and affordability—perfect for small businesses and large-scale operations alike.
User-Friendly Design
The integrated high-visibility target plate simplifies targeting, while quick setup and low maintenance reduce downtime in the field.
Who Benefits from the GPR111 Prism?
Land surveyors, construction engineers, and topographic professionals rely on the GPR111 prism for:
Construction layout and grading tasks
Infrastructure mapping (bridges, roads)
Control surveys and deformation monitoring
Topographic elevation and contour measurements
Whether you’re tackling a small boundary survey or a large infrastructure project, the GPR111 prism combines accuracy, durability, and value to keep your surveying work on track.
