Sokkia SX-105T 5" Auto-Tracking Total Station

Sokkia SX-105T 5" Auto-Tracking Total Station

The Sokkia SX-105T 5″ Auto-Tracking Total Station is a robotic surveying instrument that measures angles, distances, and point positions. Its 5-arc-second angular accuracy supports land surveying, construction layout, and general site measurement. By combining electronic angle measurement with laser distance measurement, it helps surveyors determine coordinates and elevations for mapping and positioning tasks.

Its automatic tracking system follows a compatible prism as the operator moves between measurement points, reducing repeated manual aiming. With a compatible field controller and suitable robotic accessories, the SX-105T supports one-person surveying. The operator can control measurements from the prism pole, provided a clear line of sight is maintained between the prism and the instrument.

The SX-105T uses Sokkia’s RED-tech electronic distance measurement system to measure to prisms, reflective sheets, and suitable surfaces without a reflector. Reflectorless measurement is useful for observing building faces and other points where placing a prism is difficult. It offers a reflectorless range of up to 1,000 meters under specified conditions, with performance affected by target reflectivity, lighting, and the environment.

Common applications include topographic surveys, construction stakeout, road layout, and as-built documentation. Surveyors use the instrument to record existing features, locate planned design points on the ground, and check completed work against project coordinates. Functions such as resection, offset measurement, remote elevation measurement, and area calculation help crews handle different measurement tasks from a single instrument.

Designed for outdoor fieldwork, the SX-105T features IP65 dust and water resistance, a color display, internal memory, and Bluetooth Class 1 communication with compatible controllers. Its dual-axis compensator corrects for small instrument tilts during measurement. Together, these features support practical field operation while automated aiming and tracking help reduce repetitive work.

Features:

• 5-arc-second angular accuracy for surveying and construction layout.
• Automatic prism tracking follows a compatible moving prism.
• Motorized automatic aiming reduces manual telescope adjustments.
• One-person robotic operation with compatible controllers and accessories.
• RED-tech electronic distance measurement supports prisms, reflective sheets, and reflectorless targets.
• Reflectorless range up to 1,000 meters under specified conditions.
• Prism measurement range up to 6,000 meters with an AP prism under good conditions.
• Prism distance accuracy of ±(1.5 mm + 2 ppm × distance).
• Dual-axis tilt compensation with a ±6-arc-minute range.
• Selectable angular display resolution of 1″ or 5″.
• Rotation speed up to 85° per second at 20°C.
• Auto-tracking speed up to 20° per second.
• Bluetooth Class 1 connectivity for compatible field controllers.
• 3.5-inch color LCD display.
• 500 MB internal memory and USB flash drive support up to 8 GB.
• USB and RS-232C interfaces for data transfer.
• IP65 dust and water resistance.
• Operating temperature range of −20°C to +50°C.
• Coaxial red laser pointer and red/green guide lights assist with aiming and stakeout.
• Surveying functions include coordinate measurement, stakeout, resection, offsets, and area calculation.