30-second answer: The DADI DTM-652R is a 2" reflectorless total station with up to 600 m reflectorless range, 3 km single-prism range, 5 km triple-prism range, Bluetooth, driver-free USB and approximately 16,000-point internal memory. It is designed for construction layout, engineering surveying and cadastral fieldwork.
What Is the DADI DTM-652R?
The DADI DTM-652R combines 2" angular accuracy with long-range electronic distance measurement and multiple data-transfer options. Its absolute-encoding angle system, reflectorless EDM, Bluetooth, driver-free USB interface and RS-232C port support efficient field measurement and data handling.
What Are the Main Features of the DTM-652R?
Measures up to 600 m without a prism, up to 3 km with a single prism and up to 5 km with a triple prism.
Uses an absolute-encoding angle measurement system with selectable 1", 5" and 10" minimum readings.
Supports Bluetooth, driver-free USB and RS-232C for flexible field-to-office data transfer.
Internal storage capacity is approximately 16,000 points for extended field data collection.
What Is the DTM-652R Best Used For?
The DTM-652R is suitable for construction layout, engineering surveying, cadastral surveying and general site measurement. Its reflectorless EDM is useful when a prism cannot be placed easily, while Bluetooth and driver-free USB support help simplify data transfer after measurement.
Who Should Choose the DTM-652R?
The DTM-652R is a good fit for teams that need a conventional 2" total station with long reflectorless range and more flexible data interfaces. Compared with a basic serial-port-only workflow, Bluetooth and driver-free USB support can reduce cable dependence and make field data transfer more convenient.
Technical Specifications
| Angle Measurement | |
| Measuring Method | Absolute Encoding |
| Detection Method | Level Radial / Vertical Radial |
| Angular Accuracy | 2" |
| Minimum Reading | 1" / 5" / 10" |
| Distance Measurement | |
| Reflectorless Range | Up to 600 m |
| Single Prism Range | Up to 3 km |
| Triple Prism Range | Up to 5 km |
| Reflectorless Accuracy | 3 mm + 2 ppm |
| Single Prism Accuracy | ±2 mm + 2 ppm |
| Unit | m / ft |
| Telescope | |
| Tube Length | 160 mm |
| Image | Erect |
| Effective Aperture | 48 mm |
| Magnification | 30x |
| Field of View | 1°30' |
| Resolving Power | 3.75" |
| Minimum Focus Distance | 1 m |
| Stadia Ratio | 100 |
| Sight Distance Precision | ≤0.4%D |
| Reticle Illumination | Yes |
| Quick Sights | Yes |
| Compensator | |
| Type | Single Axis |
| Method | Liquid-electric detection |
| Range | ±3' |
| Interface and Data | |
| Bluetooth | Yes |
| USB | Yes (Driver-free) |
| Serial Port | RS-232C |
| Internal Memory | Approx. 16,000 Points |
| Software | Intelligent Calibration / DADI-Pro1 |
| General and Power | |
| Display | Dual, High-Resolution Backlight, B&W |
| Keypad | Alphanumeric |
| Battery Life | Up to 6 hours (Rechargeable Li-ion) |
| Laser Plummet Accuracy | 1.5 mm at 1.5 m instrument height |
| Laser Class / Wavelength | Class 2 / 635 nm (Red) |
| Plate Bubble Vial | 30" / 2 mm |
| Circular Bubble Vial | 8' / 2 mm |
| Weight | 5.5 kg |
| Dimensions | 190 x 175 x 355 mm |
| Operating Temperature | -20°C to +50°C |
| Storage Temperature | -40°C to +70°C |
| Tribrach | Detachable |
| Warranty | One Year |
Frequently Asked Questions
Does the DTM-652R support Bluetooth data transfer?
Yes. The DTM-652R supports Bluetooth and also provides driver-free USB and RS-232C interfaces.
What is the reflectorless range of the DTM-652R?
The specified reflectorless range is up to 600 m.
How much data can the DTM-652R store?
Internal memory capacity is approximately 16,000 points.
What is included with the DTM-652R?
The listed package includes the total station, hard case, toolkit, cleaning cloth, dust blower, PC-USB cable, two Li-ion batteries, charger and user manual.
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