Quick Answer
What is the Spectra Precision Focus 35?
See also: Topcon GTS-240N Total Station
See also: Sokkia CX-105 Total Station
The Spectra Precision Focus 35 is a 5-arc-second total station with onboard SurveyPro software, reflectorless EDM to 300 meters, and Bluetooth communication for construction layout and topographic surveys.
Spectra Precision Focus 35 — Complete Specs, Manual & Guide
Category: Total Station | Brand: Spectra Precision | Model: Focus 35
The Spectra Precision Focus 35 is a conventional total station delivering 5-arc-second angular accuracy with an integrated reflectorless EDM and onboard SurveyPro field software. It is designed for construction layout, topographic surveys, and as-built documentation on projects where one-person operation and cost-effectiveness are priorities.
Spectra Precision Focus 35 Full Specifications
| Angular accuracy | 5" (1.5 mgon) |
| EDM range (prism) | 2,000m |
| EDM range (reflectorless) | 300m to white surface |
| Distance accuracy (prism) | ±(2mm + 2ppm x D) |
| Distance accuracy (reflectorless) | ±(5mm + 3ppm x D) |
| Telescope magnification | 30x |
| Onboard software | SurveyPro |
| Display | Dual-face color LCD touchscreen |
| Connectivity | Bluetooth, USB, RS-232 |
| IP rating | IP55 |
| Battery life | ~12 hours |
| Operating temperature | -20°C to +50°C |
| Weight | 4.8 kg (10.6 lbs) |
Accessories & Part Numbers
- Ranger 7 — Trimble/Spectra Ranger 7 handheld field data collector
- P-Series prisms — 360-degree and standard prism sets
- GreenLine case — Protective foam carry case
Error Codes Quick Reference
| E-01 | Compensator error — re-level instrument on tripod |
| E-02 | EDM fault — clean EDM window and check prism |
| E-03 | Battery low — replace or charge battery |
| E-10 | Software error — power cycle and restart SurveyPro |
Frequently Asked Questions — Spectra Precision Focus 35
What is the Spectra Precision Focus 35 angular accuracy?
The Focus 35 delivers 5-arc-second (1.5 mgon) angular accuracy, appropriate for construction layout, topographic surveys, and boundary surveys where sub-second accuracy is not required.
What field software does the Focus 35 run?
The Focus 35 runs Spectra Precision SurveyPro software on the onboard controller. SurveyPro supports point storage, stakeout, traverse, and area calculation. The Focus 35 can also communicate with an external Ranger 7 data collector via Bluetooth.
What is the reflectorless EDM range on the Focus 35?
The Focus 35 measures distances reflectorlessly to 300 meters on a white target surface. Reflectorless accuracy is ±(5mm + 3ppm). For distances beyond 300m, use a prism for accurate measurements.
Is the Focus 35 a robotic total station?
No — the Focus 35 is a conventional (manual) total station. An operator must manually aim the telescope at each target. For robotic one-person operation, Spectra Precision offers the Focus 50 robotic model.
What prisms work with the Spectra Precision Focus 35?
The Focus 35 is compatible with standard 60mm prisms (Leica-compatible), mini prisms, and 360-degree round prisms. A prism constant offset of 0.0mm applies to Spectra P-series prisms. Verify prism constant when using third-party prisms.
Related models: Topcon GTS-240N | Sokkia CX-105
Track your Focus 35 calibration dates, service history, and field verification records with Gradelog's Equipment Registry. Free to start at gradelog.com.
