laser tracker
Leica AT901
The Leica Absolute Tracker AT901 is a portable laser-based measurement system designed for precise inspection within a spherical range of up to 160 m (525 ft). Featuring PowerLock technology, it automatically re-engages the target when it comes into view, eliminating the need for manual realignment. This lets operators stay focused on the measurement task without worrying about losing the laser beam.
6 Degrees of Freedom tracking with support for T-Scan 5 or T-Probe
Spherical measurement volume up to Ø160 m
High-speed 1,000 Hz data acquisition enables dynamic measurements
PowerLock automatically reacquires the AIFM beam for uninterrupted operation
Ideal for integration into automated measurement systems
Operates with mains power only
Leica AT901
features
All-in-One Compact Design
The AT401 integrates all essential features into a single unit—from built-in wireless connectivity, environmental monitoring, and hot-swappable battery power, to an overview camera, RapidSight aim scope, and ergonomic carry handle—for unmatched portability and ease of use.
Compact Probing Solution
Everything fits in one case: the lightweight tracker, probe, IR remote, and optional transport cases for flexible, easy deployment anywhere.
Seamless Smart Connectivity
With built-in WiFi and access point functionality, the system supports simple PC setup and remote operation via laptop, tablet, or smartphone—ideal for single-user workflows.
Wireless Battery Operation
Dual hot-swappable batteries provide a fully cable-free setup and enable uninterrupted all-day use.
Dust- and Water-Resistant
Certified to IP54 standards, the tracker is sealed to withstand dust and moisture, ensuring reliable operation in harsh industrial environments.
Built-in Environmental Sensing
The integrated MeteoStation constantly tracks ambient temperature, pressure, and humidity to compensate for environmental changes and maintain accuracy.
PowerLock Reacquisition
PowerLock technology automatically reacquires lost line of sight over a wide field without any user intervention.
Extended Measurement Range
Covers an exceptionally large working volume of up to 320 meters in diameter, with a minimum measurement distance of just 0.8 meters.
Gravity-Oriented Measurement
The Orient-to-Gravity function aligns the Z-axis with gravity, making it perfect for leveling and alignment applications.
Real-Time Measurement
Features continuous time and distance tracking for dynamic measurement tasks.
Broad Operating Temperature
Designed for tough conditions, the system functions reliably between -15°C and 45°C.
Leica AT401
technical data
Dimensions
Sensor Size: 290 x 221 x 188 mm (11.4” x 8.7” x 7.4“)
Sensor Weight: 7.3 kg (16 lbs)
Controller Size: 250 x 112 x 63 mm (9.8” x 4.4” x 2.5”)
Controller Weight: 0.8 kg (1.75 lbs)
Range
Infinite Horizontal Rotation:+/-360 ̊
Infinite Vertical Rotation:+/- 145 ̊
Typical working Volume: 320 m
Environmental
Dust/Water: IP54 (IEC 60529)
Operating Temperature: 0 ̊C to +40 ̊C
Relative Humidity: Max. 95% (non-condensing)
Altitude: -700 to 5500 m (-2,300 to 18,000 ft) Motorization
Acceleration: 360 ̊/s2
Rotation Speed: 180 ̊/s
PowerLock: 10 ̊ FOV
Absolute Angular Performance
Resolution: 0.07 arc Seconds
Accuracy (MPE):+/- 15 μm + 6 μm/m (+/- 0.0006” + 0.00007”/ft)
Repeatability (MPE):+/- 7.5 μm + 3 μm/m (+/-0.0003” + 0.00004”/ft)
Inclination Setting Accuracy (2σ):+/- 1 arc second
Absolute Distance Performance
Resolution: 0.1 μm
Accuracy (MPE):+/- 10 μm (+/- 0.00039”)
Repeatability (MPE):+/- 5 μm (+/- 0.0002”)
Laser Emission Class 2 Laser Product in accordance with the IEC 60825-1 Second Edition (2007-03) General Information
Overview Camera (OVC) 4:3 IR enhanced Image ≈10 ̊ FOV
Environmental Monitor Internal – Temperature, Pressure and Humidity External – Air Temperature – Object Temperature
Remote Control Integrated 4 Button IR
Interfaces Cable – TC P/IP (Cat5) Wireless – WLAN (IEEE 802.11g)
Power Management Internal – lithium-ion battery External – AC power supply Optional –Power Over Ethernet (PoE+)