Key Features

• High-precision 5-second angular accuracy for professional surveying and construction
• Integrated red laser pointer for alignment and layout applications
• Advanced absolute encoder technology for reliable angle measurements
• Dual backlit LCD displays for easy viewing in all lighting conditions
• Rugged IP66-rated dustproof and waterproof construction
• Powerful 30x telescope magnification for accurate long-distance targeting
• Automatic vertical compensator for improved measurement stability
• Optical plummet for fast and precise setup over control points
• Long battery life with AA battery or rechargeable battery support
• Lightweight compact design for convenient field portability
• Ideal for construction layout, engineering alignment, infrastructure, and land surveying
• Reliable performance in harsh outdoor environments

Product Description

The Topcon DT-305L 5-Second Digital Theodolite with Laser Pointer (1034419-05) is a professional electronic surveying instrument designed for precise angle measurement and efficient alignment in construction, engineering, and land surveying applications. Featuring a built-in red laser pointer and high-accuracy 5-second angular measurement capability, the DT-305L delivers dependable performance for demanding fieldwork.

Built with Topcon’s advanced absolute encoder technology, the DT-305L provides stable and accurate horizontal and vertical angle measurements with easy-to-read dual backlit LCD displays. The integrated laser pointer improves alignment efficiency for layout and positioning tasks on active construction sites.

Its rugged IP66-rated housing protects the instrument against dust, heavy rain, and harsh environmental conditions, making it ideal for outdoor job sites. The powerful 30x telescope offers bright and sharp target acquisition for long-distance observations, while the automatic vertical compensator improves measurement reliability on uneven terrain.

Compact, durable, and easy to operate, the Topcon DT-305L is an excellent solution for contractors, surveyors, engineers, and construction professionals requiring precision and reliability in the field.

Specifications

• Model: DT-305L
• Part Number: 1034419-05
• Brand: Topcon
• Type: Digital Electronic Theodolite with Laser Pointer
• Angular Accuracy: 5 Seconds
• Telescope Magnification: 30x
• Objective Lens Diameter: 45mm
• Minimum Focus Distance: 1.0m
• Display: Dual Backlit LCD
• Measurement Type: Horizontal & Vertical Angles
• Encoder System: Rotary Absolute Encoder
• Vertical Compensator: Automatic
• Compensation Range: ±3′
• Optical Plummet: Included
• Laser Type: Red Laser Pointer
• Laser Class: Class 2
• Protection Rating: IP66 Dustproof & Waterproof
• Power Supply: 4 × AA Batteries or Rechargeable Battery Pack
• Battery Life:
  • Theodolite Only: Up to 230 Hours
  • Laser Only: Up to 80 Hours
  • Combined Use: Up to 55 Hours
• Operating Temperature: -20°C to 50°C
• Weight: Approx. 4.1kg
• Applications: Surveying, Construction Layout, Engineering Alignment, Infrastructure Projects

What’s Included

• Topcon DT-305L Digital Theodolite
• Integrated Laser Pointer
• Hard Carrying Case
• Optical Plummet
• Battery Holder
• Tool Kit
• Lens Cleaning Cloth
• Protective Rain Cover
• User Manual