DE2A-L Electronic Digital Theodolite | 2"/5"/10" Accuracy

Surveying & Engineering Instruments

DE2A-L Electronic Digital Theodolite

Keywords: DE2A-L theodolite, digital theodolite, electronic theodolite, surveying instrument, 2 second theodolite

Electronic digital theodolite with selectable 2"/5"/10" angular accuracy, 30× telescope and a built-in coaxial red laser pointer for fast, reliable site measurement.

The DE2A-L Electronic Digital Theodolite pairs an absolute angle-encoder system with a single-axis liquid-electric tilt compensator to deliver selectable 2", 5" or 10" angular accuracy in a compact, lightweight body. A built-in coaxial red laser pointer (635 nm) simplifies quick aiming and alignment, while dual backlit LCD displays and a ten-button keypad let a single operator read and record horizontal and vertical angles directly at the instrument.

With a rechargeable Ni-MH battery providing up to 8 hours of uninterrupted work, a detachable tribrach, and an optional RS232 interface, the DE2A-L is built for layout, staking-out, and alignment tasks across general construction and land-survey workflows.

Key Features

1.  Selectable 2"/5"/10" Accuracy — absolute-encoder reading system with 1"/5"/10"/20" minimum reading adapts to different precision jobs.

2.  Built-in Coaxial Red Laser Pointer — 635 nm / 10 mW laser with 150 m range for quick sighting and alignment reference.

3.  Dual Backlit LCD Displays — front and back screens show readings simultaneously, improving efficiency for single-operator work.

4.  30× Erect-Image Telescope — 47 mm objective, 1°30' field of view and 3.75" resolving power for sharp long-distance sighting.

5.  Single-Axis Tilt Compensation — liquid-electric vertical compensator with ±3' range and 6" resolving power keeps readings stable on uneven ground.

6.  Long Battery Life — rechargeable Ni-MH battery delivers up to 8 hours of continuous operation with a visible low-power alert.

7.  Detachable Tribrach & Optional RS232 — flexible mounting and data interface for varied field workflows.

How to Use

1.  Set Up — mount the theodolite on a tripod via the detachable tribrach, level it with the circular and tubular vials, and center over the station with the laser plummet (1.5 mm @ 1.5 m).

2.  Sight the Target — aim the 30× telescope, use the built-in laser pointer for quick alignment, focus, and tighten the tangent clamps for fine adjustment.

3.  Read & Record — read horizontal and vertical angles on the dual LCDs; switch units as needed.

4.  Compensate — the single-axis tilt sensor automatically corrects within ±3' so readings stay accurate on slightly uneven ground.

Technical Specifications

Applications

1.  Construction layout, building corner setting, and foundation staking.

2.  Land surveying, boundary marking, and topographic control.

3.  Road, pipeline, and utility alignment and grade checking.

4.  Machine and structural installation alignment.

Spare Parts

Optional accessories for the DE2A-L theodolite include detachable tribrach, optical prism, aluminum tripod, rechargeable Ni-MH battery pack, battery charger, carrying case, and tool kit. Contact us to configure the accessory set that fits your workflow.