API Radian R20 Laser Tracker

Smarter. Faster. More Accurate. More Flexible.

Radian™ includes all the characteristics of API’s advanced laser tracking technology

Smarter. Faster. More Accurate. More Flexible. Our exclusive on-the-shaft mounting of the laser head eliminates bending mirrors and thermally induced errors, and increases accuracy and stability. Radian™ includes all the characteristics of API’s advanced laser tracking technology:

  • Highest precision and accuracy
  • Largest working volume
  • Lowest cost of ownership
  • Still the Smallest IFM/ADM laser tracker
  • Dynamic continuous-point measuring

New Efficiencies Radian™ advances the technology and efficiency of laser trackers. Radian™ includes:

  • Multiple SMR identification
  • Mounting versatility: mount sideways, upside down, underneath, or directly on your part
  • Complete suite of advanced targets and accessories

INNOVO™ Technology Radian™ features INNOVO™ Technology, API’s powerful new software and camera integration. INNOVO™ makes the Radian™ more intelligent, easier to use, more flexible, and more stable. INNOVO™ Technology also includes these features:

  • I-Vision™ automatically captures the laser beam.
  • The widest angle view camera in the industry stays with the operator
  • Integrated camera, for still and video image capture.

INNOVO™ Includes New On-Board Intelligence
- Activity Advisor alerts you of the Radian™ laser tracker’s warm up status, key operating and environmental conditions, and more
- Advanced Self-Diagnostics detects setup and workplace irregularities before they become critical
- ADM-Maxx™ ensures more accurate measurements over longer distances
INNOVO™ Technology ensures that Radian™ is ready to measure when you are.


Range of Measurements
Linear Range (Diameter): 40 m (131 ft)

System Performance
Range Azimuth: ± 320°
Range Elevation: + 79° / -59°
Angular Resolution: ± 0.018 arcsec
Angular Accuracy: 3.5 μm/m
Resolution: 0.1 μm
Internal Level Accuracy: ± 2 arcsec

Static Measurement (IFM): ± 10  μm or 5 ppm (2 sigma)

HeNe Laser (IFM): Classe II (eye safe)
Resolution: 0.08 μm
Accuracy: ± 0.5 ppm
IR Laser (ADM-Maxx): Classe I (eye safe)
Resolution: 0.1  μm
Lock-on Accuracy: ± 10  μm or 1 ppm

Working Range: 0 - 25 m (typical)
Field of Vision: 30° (diagonal)

Tracker Weight: 9 kg
Tracker Size: 177 mm x 177 mm x 355 mm
Controller Weight: 3.2 kg
Controller Size: 110 mm x 160 mm x 310 mm


ADM is the brainchild of a group of highly-skilled professionals with in-depth exposure to solve the special problems in industrial field. ADM co founded in 2005 with the concept of “PERFORMANCE WITH EXCELLENCE”.     Read More


Abad Deghat Markazi Co.
Hemat Avenue - Ghotb Industrial Hub - Arak - IRAN