• LI-200R Pyranometer

  • LI-190R Quantum Sesnor

  • LI-192 Underwater Quantum Sensor

The standard for light measurements

LI-200R Pyranometer

  • Weather resistant and durable in long-term outdoor deployments
  • Measures global solar radiation under unobstructed natural daylight conditions
  • Uniform sensitivity up to 82° incident angle
  • Detachable sensor simplifies installation and removal, making it ideal for platforms with complex cabling

LI-190R Quantum Sensor

  • Uniform sensitivity across the PAR waveband for accurate measurements outdoors, under vegetation, or in artificial lighting without changing the calibration
  • Newly designed optical filter tailors the spectral response to an unprecedented performance standard
  • Weather resistant and durable in high-temperature, high-humidity, long-term deployments
  • Cosine correction is accurate even when the light source is not directly overhead
  • Sensor heads are detachable and interchangeable for simplified installation, removal, and recalibration

LI-210R Photometric Sensor

  • Spectral response closely matches the CIE Standard observer Curve
  • Excellent cosine response- sensitive to light from all directions up to an 82° angle of incidence
  • Detachable sensor simplifies installation and removal, making it ideal for platforms with complex cabling

LI-192 Underwater Quantum Sensor

  • Designed for immersion
  • Rugged, corrosion-resistant sensors for use in fresh and saltwater environments
  • Ideal for oceanography, limnology, turbidity, and vertical profiling
  • Suitable for submerged and out-of-water measurements

LI-193 Spherical Underwater Quantum Sensor

  • Designed for immersion
  • Measures PAR from all directions
  • Ideal for oceanography, limnology, turbidity, and vertical profiling

LI-191R Line Quantum Sensor

  • Improved water resistance for long-term outdoor deployment
  • Integrated measurements using a single detector prevents variance found in sensors that use multiple detectors
  • Selected by the National Ecological Observatory Network (NEON™) for integrated PAR measurements

LI-1500 Light Sensor Logger

  • Intuitive, menu-driven interface
  • Fast Measurements (up to 500Hz)
  • Global Positioning System (GSP) optional
  • Large Memory (1GB)
  • Weather-resistant, handheld operation
  • Connects to LI-COR terrestrial and underwater light sensor

LI-250A Light Meter

  • 15-second averaging is turned on or off by pressing a single button
  • Over 150 hours of operation from a single 9-volt battery
  • Automatic shut-off after 20 minutes of inactivity
  • O-ring sealed case for weather protection
  • Easy-to-enter calibration multipliers make it simple to change between sensors
  • Compatible with the LI-190R, LI-191R, LI-192, LI-193, LI-200R, or LI-210R