Site Layout

Seiler offers the Spectra Precision Robotic Total Station with Layout Pro or Survey Pro Software.  Our solutions allow contractors to gain greater control of their job sites allowing significant improvements in construction accuracy and productivity.

Spectra Precision Focus 35 Robotic Total Station

Ranger 3 Data Collector

Spectra Precision Layout Pro Field

Spectra Precision Layout Pro Office



  • Spectra Focus 35 Robotic Total Station


    The FOCUS 35 is a motorized total station providing high speed, accuracy and precision in measurement. The FOCUS 35 robotic instrument moves the power of the observer from the instrument to the range pole, improving efficiency. The speed of observation and precise positioning of the FOCUS 35 Robotic Total Station is provided by patented StepDrive™ motion technology, which controls the horizontal and vertical motion of the motors, eliminating the need for traditional motion locks. The FOCUS 35 includes a tracking sensor that uses LockNGo™ FastTrack tracking technology, enabling the instrument to constantly lock onto the prism.

  • Spectra Precision Ranger 3 Data Collector


    The third generation Spectra Geospatial Ranger™ Data Collector offers a large bright touch-screen, full alpha-numeric, easy to operate, keypad, and is packed with the features surveyors depend on.