The DADI DE2A is a 2" digital theodolite designed for construction and surveying applications. Its absolute encoder provides 2" (0.6 mgon) angular accuracy, while the 30x telescope, dual LCD displays and single-axis liquid-electric compensation support professional field measurement. The main unit weighs 4.1 kg and includes an internal Class 2 laser plummet.
Product Family: The DADI DE2A is the standard electronic-theodolite configuration within the DADI DE2A series. The DE2A series also includes red-laser, green-laser, long-range green-laser and autocollimation configurations developed for different surveying and alignment requirements.
The DADI DE2A is the standard electronic-theodolite configuration within DADI's DE2A series. It is designed for construction and surveying work requiring horizontal and vertical angle measurement without the distance-measurement functions of a total station.
The DE2A provides 2″ (0.6 mgon) angular accuracy, an absolute encoder angle-reading system, a 30x erect-image telescope, dual LCD displays, a 10-key interface and single-axis liquid-electric tilt compensation with a ±3′ range. The standard configuration also includes an internal Class 2 laser plummet.
The DE2A series is DADI's electronic theodolite product family. Within this family, the DE2A is the standard configuration, while other models add red or green upper lasers, long-range green-laser capability or autocollimation functions for specialized applications.
| Model | DE2A Series Configuration | Primary Function |
|---|---|---|
| DE2A | Standard Electronic Theodolite | General electronic angle measurement with laser plummet |
| DE2A-L | Red Laser Configuration | Red upper laser for visible pointing and alignment |
| MPE-02L | Green Laser Configuration | Green upper laser with effective working distance up to 300 m |
| DE2A-GF500 | Long-Range Green Laser Configuration | 1 km / 1.5 km effective working distance configurations |
| DE2A-AC | Autocollimation Configuration | Precision alignment and specialized measurement applications |
The angle-measurement system is specified at 2″ (0.6 mgon) angular accuracy.
The DE2A uses an absolute encoder angle-reading system for horizontal and vertical angular measurement.
The erect-image telescope provides 30x magnification, a 47 mm objective diameter and a 1°30′ field of view.
Dual-sided LCD screens and a 10-key interface provide access to field measurement functions from either side of the instrument.
Liquid-electric detection provides single-axis compensation over a ±3′ range.
The main instrument weighs 4.1 kg (9.0 lb).
The DE2A is designed for construction and surveying applications requiring horizontal and vertical angle measurement. Its absolute encoder, compensated tilt sensing, optical telescope and internal laser plummet form the standard measurement configuration within the broader DE2A product family.
The DE2A is suited to users who need a conventional 2″ electronic theodolite with an absolute encoder, 30x optics, dual displays, single-axis compensation and laser plummet, without an upper pointing laser or the distance-measurement functions of a total station.
| Angle Measurement | |
| Accuracy | 2″ (0.6 mgon) |
| Reading System | Absolute Encoder |
| Measurement Units | DEG / MIL / GON / V% |
| Minimum Reading | 1″ / 5″ / 10″ |
| Circle Diameter | 74 mm (2.9 in) |
| Telescope Optics | |
| Tube Length | 120.4 mm (4.7 in) |
| Image / Magnification | Erect / 30x |
| Field of View | 1°30′ |
| Resolving Power | 3″ (Standard) |
| Objective Diameter | 47 mm (1.85 in) |
| Minimum Focusing Distance | 1.5 m (4.9 ft) |
| Reticle / Stadia Ratio | Crosshair / 100:0 |
| Tilt Sensor and Leveling | |
| Type / Method | Single-axis / Liquid-electric detection |
| Compensation Range | ±3′ |
| Circular Level Sensitivity | Tribrach: 10′/2 mm / Body: 8′/2 mm |
| Tubular Level Sensitivity | 30″ / 2 mm |
| General Specifications | |
| Laser Plummet (Internal) | Class 2 Laser (1.5 mm @ 1.5 m) |
| Optical Plummet (Customized) | 3x Magnification |
| Tangent Clamps | Yes |
| Dimensions (W x D x H) | 180 x 166 x 355 mm |
| Main Unit Weight | 4.1 kg (9.0 lb) |
| Battery / Case Weight | 0.2 kg / 1.7 kg |
The standard package includes the DADI DE2A Electronic Theodolite, hard carrying case, rechargeable battery pack, battery charger, toolkit and user manual.
Available accessories listed for the DE2A include a heavy-duty tripod, leveling staff and ranging rod, survey hammer and plumb bob, 100 ft measuring tape and optical plummet kit.
Yes. DE2A identifies the broader DADI electronic theodolite series as well as the standard configuration within that product family. Other configurations in the DE2A series include DE2A-L, MPE-02L, DE2A-GF500 and DE2A-AC.
The standard DE2A configuration is specified at 2″ (0.6 mgon) angular accuracy.
No. The standard DE2A configuration uses an internal laser plummet for instrument centering. Upper pointing lasers are provided on other configurations within the DE2A series, including red-laser and green-laser models.
Yes. The DE2A uses an absolute encoder angle-reading system.
The telescope provides 30x magnification with a 47 mm objective diameter.
The standard DE2A configuration uses single-axis liquid-electric detection with a ±3′ compensation range.
Yes. The standard internal plummet is a Class 2 laser specified at 1.5 mm at 1.5 m. A 3x optical plummet is listed as a customized option.
Explore DADI DE2A series configurations including the standard DE2A electronic theodolite, red-laser DE2A-L, green-laser MPE-02L, long-range green-laser DE2A-GF500 and autocollimation DE2A-AC.
What's in the Box
DE2A Digital Electronic Theodolite (2-Second)
Hard Carrying Case
Soft Nylon Key Brush
Toolkit with Cleaning Cloth (For Lens), Screwdriver and 1 Needle
NiMH Rechargeable Battery Pack
5 AA Alkaline Battery Holder
Battery Charger
User Manual
Surveying accessories
Tripod | J-1A |
| |
Staff | 3m |
| |
Prism | AK18-1 |
| |
| Triple | TPS30-Y |  |
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