The Topcon DT-309G Digital Theodolite is a precision optical instrument designed for construction layout, alignment, and angle measurement. Featuring digital angle readings, a clear telescope, and a rugged field-ready design, it provides reliable performance for everyday construction and surveying applications.
9-Second Angular Accuracy: Provides dependable horizontal and vertical angle measurements for construction layout.
Digital Angle Display: Offers easy-to-read measurements for faster fieldwork.
30× Telescope Magnification: Provides clear target visibility for precise sighting and alignment.
Optical Plummet: Helps position the instrument accurately over survey points.
Rugged Construction: Designed to withstand demanding outdoor surveying and construction conditions.
Simple Operation: Convenient controls make angle measurement and layout straightforward.
clearance
Angular Accuracy: 9″
Telescope Magnification: 30×
Angle Measurement: Horizontal and vertical
Minimum Angle Display: 10″ / 20″ selectable
Display: Single-sided LCD
Plummet: Optical, 3× magnification
Tribrach: Fixed
Power Supply: 4 AA batteries; optional BDC71 rechargeable battery
Battery Runtime: Up to 250 hours with alkaline batteries
Environmental Rating: IP66
Operating Temperature: -20°C to 50°C (-4°F to 122°F)
Weight: Approximately 4.0 kg (8.8 lb.)
Topcon DT-309G Digital Theodolite
Hard Carrying Case
Plumb Bob
Tool Kit
Lens Cleaning Cloth
Protective Rain Cover
Precision Assurance
Topcon Calibration Services
Equipment is inspected and calibrated by certified technicians.
Ensure peak performance and accuracy with Topcon Calibration Services. Add this service to your laser purchase to guarantee your equipment is properly calibrated for optimal results. Professionally tested and adjusted, your laser will be ready to deliver precise measurements right out of the box.
Note: This calibration service is available only for online purchases and must be added at the time of equipment purchase.