Updated from the previous 400 m specification to up to 600 m under good conditions. The current DTM-624R EDM specification also supports up to 4,000 m with a single prism.
30-second answer: The DADI DTM-624R is a 2" reflectorless total station for construction layout, civil engineering and cadastral surveying. It provides a 0.3 m to 600 m reflectorless range, a 1.3 m to 4,000 m single-prism range, ±(2 mm + 2 ppm·D) distance accuracy, and fast 1.0 s standard / 0.8 s tracking measurement.
What Is the DADI DTM-624R?
The DADI DTM-624R is a professional reflectorless total station combining 2" angular accuracy, an absolute encoder, long-range EDM and a single-axis liquid-electric compensator. The latest EDM specification increases reflectorless capability from the previous 400 m specification to up to 600 m under good conditions, extending non-prism measurement for construction and engineering fieldwork.
What Has Been Updated?
The current specification extends reflectorless measurement to 600 m under good conditions.
Single-prism measurement is specified from 1.3 m to 4,000 m.
Prism and reflectorless distance accuracy are both specified at ±(2 mm + 2 ppm·D).
The telescope minimum focusing distance is 1.3 m for work in tighter spaces.
What Are the Main Features?
Reflectorless measurement range: 0.3 m to 600 m under good conditions.
Absolute encoder angle measurement with 2" (0.6 mgon) angular accuracy.
Measurement time is 1.0 s in standard mode and 0.8 s in tracking mode.
Single-axis liquid-electric compensation with a ±3' compensation range.
Where Is the DTM-624R Used?
The DTM-624R is suitable for construction layout, civil engineering measurement, cadastral surveying, stake-out, road construction and general site surveying. The longer 600 m reflectorless range can reduce the need to place a prism at remote or difficult-to-access points when site conditions are suitable.
When Is This Model a Good Fit?
Choose the DTM-624R when your work requires 2" angular accuracy, up to 600 m reflectorless measurement under good conditions, up to 4,000 m with a single prism, fast EDM and DADI Survey Pro-T onboard software.
Technical Specifications
| Distance Measurement (EDM) | |
| Single Prism Range | 1.3 m to 4,000 m |
| Reflectorless Range | 0.3 m to 600 m (Good Conditions) |
| Mini Prism Range | 1.3 m to 500 m |
| Reflective Sheet Range | 1.3 m to 100 / 300 / 500 m |
| Accuracy - Prism and Reflectorless | ±(2 mm + 2 ppm·D) |
| Measuring Time | Standard: 1.0 s / Tracking: 0.8 s |
| Telescope Optics | |
| Magnification / Resolving Power | 30x / 3.5" |
| Objective Aperture / Field of View | 48 mm / 1°30' |
| Minimum Focusing Distance | 1.3 m |
| Image / Tube Length | Erect / 161.3 mm |
| Laser Pointer | Coaxial Red Light Pointer |
| Angle Measurement | |
| Angular Accuracy | 2" (0.6 mgon) |
| Reading System | Absolute Encoder (Diametrical / Single) |
| Minimum Increment | 1.0" (0.2 mgon) |
| Measurement Unit | Degree / Mil / Gon / V% |
| Leveling and Compensation | |
| Type / Compensation Range | Single-axis Liquid-electric / ±3' |
| Circular Level Sensitivity | Tribrach: 10' / 2 mm; Body: 8' / 2 mm |
| Tubular Level Sensitivity | 30" / 2 mm |
| System and Environmental | |
| Laser Plummet | Class 2 Laser (1.5 mm @ 1.5 m) |
| Onboard Software | DADI Survey Pro-T |
| Battery Type / Voltage | 2 x Rechargeable Li-ion / 7.2 V |
| Dimensions / Weight | 180 x 175 x 355 mm / 6.5 kg |
| Operating Temperature | -20°C to +50°C |
Standard Package
The standard package includes the DADI DTM-624R Total Station, premium hard carrying case, two high-capacity Li-ion batteries, dual-slot battery charger and comprehensive user manual.
Frequently Asked Questions
Has the DTM-624R reflectorless range been updated?
Yes. The current specification updates the previous 400 m reflectorless rating to up to 600 m under good conditions.
What is the current reflectorless range?
The current specified reflectorless measurement range is 0.3 m to 600 m under good conditions.
How far can the DTM-624R measure with a single prism?
The official single-prism range is 1.3 m to 4,000 m.
What is the distance accuracy?
Distance accuracy is specified as ±(2 mm + 2 ppm·D) for both prism and reflectorless measurement.
What is the minimum focusing distance?
The telescope minimum focusing distance is 1.3 m.
Compare DADI Total Stations
Explore DADI total station models for surveying, construction and engineering measurement.
View Total Stations
