Enhanced reflectivity and precision optical performance for longrange surveying and demanding field work. Key benefits Improved reflectivity: Precision optical glass increases reflection strength and produces bright, clear returns for reliable measurements even in challenging lighting. Maintains measurement accuracy at long range. precision lens: Precisioncut, meticulously polished optical glass minimizes light distortion and maximizes reflectivity for accurate readings within 800 meters. Rugged, fieldready construction: Sturdy housing protects precision components and preserves optical alignment against impacts and environmental damage, suitable for harsh jobsite conditions. Plugandplay compatibility: Factorycalibrated with a 0mm constant for seamless use with total stations and GPR1 / GPH1 systems, reducing calculation steps and simplifying data processing. Key features Material: Quality optical glass, precision cut and polished for minimal distortion. Range: Effective reflective performance up to 800 meters. Calibration: 0mm constant for direct compatibility with total stations and GPR1 GPH1 systems. Durability: Robust housing and construction designed to maintain alignment and protect internal components on construction and survey sites. How this product solves problems Improves data reliability in low or variable light by increasing signal strength and clarity. Reduces rework and resurveys by maintaining alignment and reflectivity under field stress. Simplifies workflow and reduces calculation errors through the 0mm constant calibration for common surveying instruments. Typical use scenarios Longrange land surveying: Clear, consistent returns for survey targets up to 800 meters. Construction and topographic surveys: Durable design resists impacts and site conditions while preserving measurement accuracy. Engineering and infrastructure projects: Direct compatibility with total stations and GPR1 / GPH1 systems for streamlined data collection and processing. What makes it stand out Precision optical glass and polished surface for exceptional clarity. Fieldtough design that protects accuracy and alignment. Precalibrated 0mm constant for immediate, errorreduced integration with standard survey equipment.