DADI / SURVEYING INSTRUMENTS
Theodolites
Establish the angle. Define the direction.
Electronic, laser and autocollimation configurations for surveying and specialized alignment.
Explore the seriesTHE DE2A SERIES
Electronic & laser theodolites
Choose a conventional angle-measurement instrument or add a visible directional reference.
Standard electronic
DE2A
For conventional angle measurement and construction alignment.
Angle accuracy
2″
Telescope
30×
Compensator
Single-axis
Red laser
DE2A-L
Adds a visible red directional reference along the telescope line of sight.
Angle accuracy
2″
Red laser
Up to 300 m¹
Telescope
30×
Green laser
MPE-02L
Green laser pointing for surveying and engineering alignment.
Angle accuracy
2″
Green laser
Up to 300 m¹
Telescope
30×
SPECIALIZED CONFIGURATIONS
Built around the alignment task
Long-distance pointing and autocollimation serve different engineering requirements.
Long-range green laser
DE2A-GF500
Long-distance visible direction reference for large engineering tasks.
Angle accuracy
2″
Range options
1 km / 1.5 km¹
Telescope
30×
Autocollimation
DE2A-AC
Optical alignment and angular calibration for industrial applications.
Angle accuracy
2″
Autocollimation
0.5–20 m
Resolution
0.5″
¹ Laser working distances depend on visibility and site conditions. GF500 distances refer to two configurations of the same model.
A CLEARER CHOICE
Compare the configurations
| Model | Primary task | Specialized function | Angle accuracy |
|---|---|---|---|
| DE2A | Surveying & construction | Angle measurement; internal laser plummet | 2″ |
| DE2A-L | Visible direction reference | Coaxial red laser; up to 300 m¹ | 2″ |
| MPE-02L | Green laser alignment | Coaxial green laser; up to 300 m¹ | 2″ |
| DE2A-GF500 | Long-distance direction control | Green laser; 1 km / 1.5 km configurations¹ | 2″ |
| DE2A-AC | Industrial axis alignment | Autocollimation; 0.5–20 m | 2″ |
An internal laser plummet is used for centering; an upper pointing laser provides a directional reference. These are different functions.
RESOURCES & SUPPORT
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MANUFACTURING
Theodolite engineering
Explore DADI’s manufacturing and instrument-development approach.
Explore manufacturingHave a specialized alignment requirement?
Discuss the task, working distance and optical functions with our team.