Sokkia DT950LG Digital Theodolite with Laser Pointer
The Sokkia DT950LG is a professional-grade digital theodolite engineered for contractors, surveyors, and construction crews who demand reliable angle measurement on demanding jobsites. With 9-second angular accuracy and a built-in laser pointer, the DT950LG streamlines building layout, utility alignment, column plumbing, and boundary verification — all in a durable, field-ready instrument backed by Sokkia's professional pedigree.
Overview and Jobsite Applications
Whether you are staking foundations on a commercial site, verifying vertical alignment on structural steel, or establishing control lines for a civil grading project, the DT950LG delivers the angular precision your work depends on. The integrated laser pointer accelerates target identification across long sighting distances, reducing setup time and improving crew efficiency. The clear digital display eliminates interpolation errors common with optical verniers, giving every crew member fast, accurate readings in any light condition. As an authorized Sokkia dealer, Express Tools supplies the DT950LG ready for immediate deployment with full manufacturer warranty support.
Key Specifications
- Angular accuracy: 9 seconds (DIN 18723)
- Telescope magnification: 30x
- Minimum focus distance: 1.0 m (3.3 ft)
- Display: Dual-sided LCD with automatic angle display
- Horizontal/vertical angle measurement: Absolute encoding
- Laser pointer: Integrated, class II
- Compensator: Single-axis liquid compensator
- Battery life: Approximately 70 hours continuous use
- Dust and water resistance: IP54-rated enclosure
- Operating temperature: -20°C to +50°C (-4°F to +122°F)
- Weight: Approximately 4.8 kg (10.6 lb) with tribrach
Key Features
- Integrated laser pointer for fast, precise target acquisition at extended distances
- Dual-sided LCD panels for easy reading from either side of the instrument
- Absolute horizontal and vertical angle encoding — no initialization required after power-on
- One-key angle hold and 0-set functions for rapid layout operations
- Repetition clamp system for accumulated angle measurement
- IP54-rated housing stands up to dust, moisture, and jobsite conditions
- Long battery life reduces downtime on extended survey sessions
- Compatible with standard 5/8-inch tribrachs and surveying accessories
Job Applications
Commercial Building Layout: Set out column grids, slab edges, and wall centerlines with 9-second precision. The laser pointer lets one operator identify marks without a second crew member holding a target, cutting layout time on large floor plates.
Structural Steel Plumbing: Use the DT950LG's calibrated vertical angle readout to verify column plumb during erection. Dual-sided displays let the instrument operator and ironworker read angles simultaneously from opposite sides of the setup.
Utility and Pipeline Alignment: Establish horizontal and vertical control for underground utility installation, verifying grade and alignment with repeatable angle measurements that meet specification tolerances.
Property Boundary and Topographic Survey: Traverse property lines, set control monuments, and collect topographic data with confidence. The absolute encoder means the instrument is ready to measure the moment you power on — no resetting required between setups.
Compatible Accessories
- Sokkia Aluminum Tripod for Theodolites
- Sokkia Tribrach with Optical Plummet
- Prism Pole and Single Prism Set
- Sokkia Carrying Case for DT Series
- Replacement Battery Pack for Sokkia DT950LG
Related Guides
- How to Set Up and Level a Digital Theodolite on Site
- Theodolite vs. Total Station: Which Instrument Does Your Project Need?
- Building Layout Best Practices with a Digital Theodolite
- Sokkia Instrument Care and Calibration Guide
Frequently Asked Questions
- What is the angular accuracy of the Sokkia DT950LG?
- The DT950LG provides 9-second angular accuracy per the DIN 18723 standard, suitable for commercial construction layout, structural work, and general surveying applications requiring sub-10-second precision.
- Does the DT950LG require initialization after powering on?
- No. The DT950LG uses absolute angle encoding, which means horizontal and vertical angles are available immediately upon power-on without any initialization or resetting routine — a significant time-saver on multi-setup days.
- Is the DT950LG weatherproof enough for outdoor construction use?
- Yes. The instrument carries an IP54 ingress protection rating, meaning it is protected against dust ingress and water splashing from any direction. It is also rated for operation from -20°C to +50°C, covering the full range of typical outdoor construction environments.
- What tripod is compatible with the Sokkia DT950LG?
- The DT950LG is compatible with any standard surveying tripod fitted with a 5/8-inch tribrach mount. Sokkia aluminum and fiberglass tripods are recommended for optimal stability and compatibility with Sokkia tribrachs and accessories.
Frequently Asked Questions
What is the angular accuracy of the Sokkia DT950LG?
The DT950LG provides 9-second angular accuracy per the DIN 18723 standard, suitable for commercial construction layout, structural work, and general surveying applications requiring sub-10-second precision.
Does the DT950LG require initialization after powering on?
No. The DT950LG uses absolute angle encoding, which means horizontal and vertical angles are available immediately upon power-on without any initialization or resetting routine — a significant time-saver on multi-setup days.
Is the DT950LG weatherproof enough for outdoor construction use?
Yes. The instrument carries an IP54 ingress protection rating, meaning it is protected against dust ingress and water splashing from any direction. It is also rated for operation from -20°C to +50°C, covering the full range of typical outdoor construction environments.
What tripod is compatible with the Sokkia DT950LG?
The DT950LG is compatible with any standard surveying tripod fitted with a 5/8-inch tribrach mount. Sokkia aluminum and fiberglass tripods are recommended for optimal stability and compatibility with Sokkia tribrachs and accessories.
