SECO Double Right Angle Prism

The SECO Double Right Angle Prism is a precision surveying accessory designed for accurate offset and layout measurements where direct line-of-sight is not possible. Featuring a double right-angle configuration, this prism allows surveyors to project points at a true 90-degree offset, making it ideal for building corners, wall lines, curb offsets, and tight jobsite conditions.

Built with SECO’s professional-grade construction, the prism delivers reliable optical performance and consistent accuracy in demanding field environments. Durable and easy to integrate with standard prism poles and mounts, the SECO Double Right Angle Prism is a trusted tool for surveyors and layout crews who need precise right-angle measurements with confidence and efficiency.