Precision is essential in surveying and the Single Prism Set plays a critical role in total station workflows by providing a reliable reflective target for electronic distance measurement. Typically featuring a single glass prism housed in a sturdy tribrach with built-in optical plummet, these sets support accurate alignment and distance capture at ranges up to approximately 1,500 meters with sub‑millimeter accuracy. Common designs use a standard 65 mm circular prism with prism constants like 0 mm or 30 mm to accommodate different total station models and calibration settings. Many single prism systems also include a protective carrying case and adapter components for easy setup in the field. They are an essential tool for construction layout, geospatial measurement, and monitoring applications, enabling consistent target reflection and compatibility with ATR and automated aiming systems.