LightWare LiDAR GRF-250 Laser Rangefinder

LightWare LiDAR GRF-250 Laser Rangefinder is a light and small sensor built to enhance intelligence, surveillance, security, and search-and-rescue operations in a compact package. This rangefinder uses a 905nm laser and delivers accurate distance measurements up to 250m using time-of-flight laser pulsing. The GRF-250 rangefinder is designed for seamless integration with EO/IR gimbals, adding reliable ranging and depth perception while enabling precise object localization. This rangefinder complies with class 1M eye safety standards and is ideal for low-altitude deployments in diverse environments, from wildlife management to crowd monitoring.

The GRF-250 rangefinder is available in 32mm x 31mm x 20mm dimensions. This rangefinder features update rates of 1 to 50 readings per second, 36ns pulse width, 2mW average power, and 20kHz pulse frequency. The GRF-250 rangefinder is immune to background light, noise, and noise. This rangefinder is used in above-ground level and security applications.

Features

  • Lightweight:
    • Ultralight at 10.65g
    • Ideal sensor for demanding applications with strict weight constraints
  • First and last pulse detection:
    • Detects both the first and last objects in the line of sight
    • Helps penetrate foliage from treetops or penetrate through environmental conditions such as mist, dust, snow, and rain
  • Long-range capability with reliable laser rangefinder capabilities over distances up to 250m
  •  Compact:
    • 32mm x 31mm x 20mm dimensions
    • Specifically designed for integration into space-constrained gimbals
  • Operates based on the time-of-flight principle
  • Comply with class 1M eye safety standards

Applications

  • Gimbal rangefinding that involves integrating the GRF-250 into an Electro-Optical/Infrared (EO/IR) gimbal
  • Above Ground Level (AGL): Provides the range and precision for AGL, which is important to UAV operations to ensure compliance with height restrictions imposed by aviation authorities
  • Provides invisible perimeter security solutions for detecting intrusions and unauthorized movements and triggering area-denial actions

Specifications

  • 10m to 250m/32.8ft to 820.2ft rangefinding capabilities
  • 950nm wavelength
  • Update rates of 1 to 50 readings per second (customizable to suit the application)
  • ± 50cm/± 19.6″ (1 sigma) accuracy
  • Maximum 5 target discrimination
  • Mechanical foresight of ±1.5° with respect to the mechanical interface
  • Serial UART and I2C (3.3V TTL and 5V tolerant)
  • -20°C to 60°C operating temperature range
  • 36ns pulse width
  • 2mW average power
  • 20kHz pulse frequency
  • <1% false alarm rate
  • < 0.5° beam divergence

Kit Contents

  • GRF-250 laser rangefinder
  • Communication cable

Videos

Mechanical Interface

Mechanical Drawing - LightWare LiDAR GRF-250 Laser Rangefinder
Published: 2024-09-19 | Updated: 2025-01-28