The DADI DE-02AL Digital Electronic Theodolite distinguishes itself with a built-in Coaxial Red Laser Pointer, enabling rapid, visible target alignment and layout. It delivers professional 2" angular accuracy with flexible display increments (1"/5"/10") to suit various precision requirements. Designed for all-day usability, even in low light, it features dual backlit LCD displays and an intuitive 10-button keypad. With a compact, lightweight body and up to 8 hours of battery life, the DE-02AL is the ultimate tool for efficient, high-visibility construction tasks.
The DADI DE-02AL is a professional digital electronic theodolite featuring a built-in Coaxial Red Laser Pointer. This integrated laser simplifies alignment and targeting, making it significantly faster and more accurate than traditional optical sighting alone.
With 2" angular accuracy, a dual backlit LCD display, and an easy-to-use 10-button interface, it is designed for efficiency. Its rugged, compact build and 8-hour battery life make it the perfect companion for any construction or engineering site.

Coaxial Red Laser Pointer
Features a built-in coaxial red laser for rapid, visible target acquisition and alignment, enhancing speed and precision.
High Precision Measurement
Delivers 2" angular accuracy with selectable 1", 5", or 10" minimum display increments to suit various project requirements.
Intuitive Interface & Display
Equipped with a simple 10-button keypad and dual backlit LCD displays, ensuring easy operation even in low-light conditions.
Reliable Power & Build
Offers up to 8 hours of uninterrupted workflow on a single charge and features a compact, lightweight design for portability.

| Angle Measurement | |
| Accuracy | 2" (0.6 mgon) |
| Reading System | Absolute Encoder |
| Units | DEG / MIL / GON / V% |
| Minimum Increment | 1.0" (0.3 mgon) |
| Circle Diameter | 74 mm (2.9 in) |
| Horizontal/Vertical Detection | Diametrical / Single |
| Telescope | |
| Tube Length | 120.4 mm (4.7 in) |
| Image | Erect |
| Magnification | 30x |
| Field of View | 1° 30' |
| Resolving Power | 15 SET |
| Effective Aperture | 47 mm (1.85 in) |
| Minimum Focusing Distance | 1.5 m (4.9 ft) |
| Laser Pointer | Coaxial Red Laser |
| Reticle Type | Crosshair |
| Stadia Ratio / Constant | 100 / 0 |
| Tilt Sensor | |
| Type | Single-Axis |
| Method | Liquid-Electric Detection |
| Compensation Range | ±3' |
| General & Physical | |
| Display | Dual Backlit LCD |
| Keys | 10 Keys Total |
| Tribrach Circular Vial | 10' / 2 mm |
| Tubular Vial | 30" / 2 mm |
| Circular Vial | 8' / 2 mm |
| Tangent Clamps | Yes |
| Internal Plummet | Class 2 Laser (1.5mm @ 1.5m) |
| Dimensions (W x D x H) | 180 x 166 x 355 mm (7.0 x 6.5 x 13.9 in) |
| Weight (Main Unit) | 4.1 kg (9.0 lb) |
| Weight (Battery) | 0.2 kg (0.4 lb) |
| Weight (Carrying Case) | 1.7 kg (3.9 lb) |
The Coaxial Red Laser Pointer aligns perfectly with the optical axis, allowing you to see exactly where the instrument is pointing without looking through the eyepiece, speeding up targeting.
The rechargeable battery provides up to 8 hours of continuous operation, sufficient for a full day of fieldwork.
Yes, it features dual backlit LCD displays, ensuring clear visibility of measurements in low-light conditions or at night.
What's in the Box
DE3A-L Digital Electronic Theodolite (2-Second)
Hard Carrying Case
Soft Nylon Key Brush
Toolkit with Cleaning Cloth (For Lens), Screwdriver and 1 Needle
2 x NiMH Rechargeable Battery Pack
Battery Charger
User Manual
Survey Target with Cross Hairs
Surveying accessories
Tripod | J-1A |
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Staff | 3m |
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Prism | AK18-1 |
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| Triple | TPS30-Y | ![]() |




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