LRF

Laser Range Finders (LRF)

Our advanced Laser Range Finders (LRFs) are designed for precision, reliability, and seamless integration into electro-optical systems. Built in our European facility, with defense-grade components and tested to the highest standards, they combine compact form factor, low power consumption, and outstanding accuracy - making them ideal for defense, aerospace or UAV applications.

laser range finder obsetech
Key Features
  • Lightweight & Compact Design
    With weight from 11g to 190g, our modules fits easily into space-constrained platforms such as handheld optics, UAV gimbals, or weapon sights.
  • Low Power Consumption
    Optimized for portable and embedded systems, enabling extended mission life and reduced power load on the host platform.
  • Defense-Grade Temperature Range
    Engineered for harsh environments, the module operates reliably from -40°C to +70°C, ensuring consistent performance in both arctic and desert conditions.
  • High Precision
    Provides distance measurement with ±1 m accuracy, even at long ranges, supporting applications that demand consistent and repeatable results.
  • Shock & Vibration Resistant
    Qualified to withstand shocks up to 1000g, ensuring durability and reliability under battlefield and high-mobility operational conditions.
  • Integration Ready
    Designed for OEM and system integrators, the LRF can be easily embedded into larger electro-optical systems, surveillance modules, and fire-control solutions.

Popular Laser Range Finder Modules

LRF-2A LRF-3A LSP-LRS-0516F LSP-LRS-0621F OBSETECH LRF-8A OBSETECH LRF-10A OBSETECH LRF-15A
LRF-2M LRF-3A LRF-5A LRF-6A LRF-8A LRF-10A LRF-15A
Human Eye Safety Level Class 1
Laser Wavelength 905nm±5nm 1535±5nm
Laser Beam Divergence ≤6mrad ≤0.6mrad ≤0.3mrad
Frequency 1~10Hz(Adaptive) 1~10Hz 1-10Hz Adjustable
Receiving Aperture Φ16mm Φ21mm Φ25mm Φ40mm Φ52mm
Ranging Capability
Big Target (Building) ≥5000m ≥6000m ≥7000m ≥10000m ≥12000m ≥20000m
Vehicle (2.3m x 2.3m) ≥3200m ≥5000m ≥6000m ≥8000m ≥10000m ≥15000m
Person (1.7m x 0.5m) ≥2000m ≥3000m ≥3000m ≥5500m ≥6500m ≥7500m
UAV (0.2m×0.3m) ≥1000m
Minimum Range ≤15m ≤15m ≤20m ≤30m ≤50m
Ranging Accuracy ±0.5m(≤80m),±1m(<1000m),±(0.2+0.0015*D)(>1000m) Surpass ±1m（Rms） ≤±1m ≤±1.5m
Accurate Measurement Rate ≥98%
False Alarm Rate ≤1%
Resolution ≤30m
Supply Voltage DC 2.7V~5.0V DC 5V~28V
Weight 11g±0.5g 33g±1g ≤40g ≤55g ≤72g ≤130g ≤190g
Average Power Consumption(1Hz Working) ≤1mW ≤ 0.8W ≤1W@5V ≤1W@5V ≤1.3W@5V ≤1.5W@5V ≤2W@5V
Peak Power Consumption ≤0.8W ≤3W ≤3W@5V ≤4W@5V ≤4.5W@5V ≤5W@5V ≤5W@5V
Standby Power 1.6W ≤0.2W
Major Function a) Single distance measurement and continuous distance measurement; b) Distance selection, front and rear target indication; c) Self checking function.
Data Interface UART（TTL_3.3V) RS422 Serial Port (Customizable TTL Serial Port) TTL,115200 bps RS422 Serial Port (Customizable TTL Serial Port)
Dimensions ≤25mm×26mm×13mm ≤48mm×21mm×31mm ≤50mm×23mm×33.5mm ≤65mm×40mm×28mm ≤65mm×46mm×32mm ≤83mm×61mm×48mm ≤104mm×61mm×74mm
Working Temperature -20℃~+65℃(Customizable-40℃） -40℃～+70℃ -40°C~+60°C
Storage Temperature -45℃~+70℃ -55℃～+75℃ -55°C~+70°C
Vibration 5-50~5Hz, 1 Octave Band/min, 2.5g Vibration Environment Of Combination Wheeled Vehicles Vibration Environment of Propeller Aircraft
Shock 75g@6ms（Customizable 1000g/1ms ≥75g@6ms

Note: Our modules starting from 5 km range are also equiped with laser pointer for a simple calibration with other systems.