LI-COR LI-192 Underwater PAR Sensor

The LI-COR LI-192 Underwater PAR Sensor Quantum sensor accurately measures photosynthetically active radiation (PAR) in freshwater or saltwater environments.

Features

  • Uses computer-tailored filter glass to achieve the desired quantum response
  • Sensor is cosine corrected, and calibration is traceable to NIST
  • Features corrosion-resistant, rugged construction for use in up to 560m depths
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LI-COR LI-192 Underwater PAR SensorLI-192SA LI-192 underwater PAR sensor with microamp output, requires underwater cable
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LI-COR 2222UWB Underwater Cables 2222UWB-3 Underwater cable, 3m
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LI-COR Underwater PAR 2222UWB-10 Underwater cable, 10m
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LI-COR Underwater PAR 2222UWB-30 Underwater cable, 30m
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LI-COR Underwater PAR 2222UWB-50 Underwater cable, 50m
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LI-COR Underwater PAR 2222UWB-100 Underwater cable, 100m
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LI-COR LI-250A Light Meter LI-250A Light meter
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LI-COR LI-1500 Light Sensor Logger LI-1500 Light sensor logger
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LI-COR LI-1500 Light Sensor Logger LI-1500G Light sensor logger with GPS
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LI-COR LI-1500 Light Sensor Logger LI-1500G-UW Light sensor logger with GPS, underwater package includes lowering frame & hard-sided carrying case
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LI-COR LI-1500 Light Sensor Logger LI-1500-UW Light sensor logger, underwater package includes lowering frame & hard-sided carrying case
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LI-COR Underwater PAR Sensor Lowering Frame 2009S Lowering frame for LI-COR underwater PAR sensors
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LI-COR Sensor Millivolt Adapters 2291 Sensor millivolt adapter (1210 Ohm resistor), for use with LI-192SA & LI-193SA sensors
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Zebra-Tech LI-COR LI-192 Hydro-Wiper LIC-01-SC-30 Self-contained Hydro-Wiper for LI-COR LI-192 PAR sensor, 30m depth rating
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NexSens UW Cable Connectorization UW-CON UW plug connectorization of sensor cable assembly
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NexSens X2-SDL Submersible Data Loggers X2-SDL X2-SDL submersible data logger
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The LI-COR LI-192 Underwater PAR Sensor accurately measures photosynthetically active radiation (PAR) in freshwater or saltwater environments. Limnologists, oceanographers and biologists conducting aquatic productivity studies and vertical profiling have used these sensors extensively. The LI-192 is cosine corrected and features corrosion resistant, rugged construction for use in freshwater or saltwater and pressures up to 800 psi or 560 meter depths.

The sensor includes built-in voltage outputs for interfacing with NexSens iSIC and SDL data loggers. Sensor cable can be factory-connectorized with NexSens underwater connectors for integration to an SDL submersible data logger sensor port. Data collection options include direct-connect, landline phone, cellular, radio, Ethernet, WI-FI, and satellite telemetry. NexSens iChart Software is a Windows-based program for interfacing both locally (direct-connect) and remotely (through telemetry) to a NexSens data logger or network of data loggers.
  • Absolute Calibration: +/-5% in air traceable to NBS
  • Sensitivity: Typically 4 uA per 1000 umol s-1 m-2 in water
  • Linearity: Maximum deviation of 1% up to 10,000 μmol s-1 m-2
  • Stability:< +/-2% change over a 1 year period
  • Response Time: 10 us
  • Temperature Dependence: +/-0.15% per C maximum
  • Cosine Correction: Optimized for both underwater and atmospheric use
  • Azimuth:< +/-1% error over 360 degrees at 45 degree elevation
  • Detector: High stability silicon photovoltaic detector (blue enhanced)
  • Sensor Housing: Corrosion resistant metal with acrylic diffuser for both saltwater and freshwater applications
  • Waterproof: Withstands 800 psi pressure (560 meter depths)
  • Size: 3.18cm Dia. x 4.62cm H
  • Weight: 227g
  • Mounting: (3) 6-32 holes are tapped into the base for use with the 2009S Lowering Frame or other mounting devices
  • Cable: Requires 2222UWB Underwater Cable
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LI-COR PAR sensors detect light waves to aid aquatic ecosystem research

Understanding how the sun’s rays fuel phytoplankton or plant growth may prove valuable to understanding an aquatic ecosystem. A pair of sensors from LI-COR can help researchers studying algal blooms and aquatic vegetation by measuring how much light enters underwater environments. Sitting below the surface, the LI-192 flat-lensed photosynthetically active radiation sensor and the LI-193 spherical PAR sensor measure light waves striking their silicon photovoltaic detectors.  They sense light wavelengths between 400 and 700 nanometers, which is the ideal range for photosynthesis. Dave Johnson, a LI-COR product manager for the LI-190 series, said the sensors’ individual designs make them ideal for different applications.

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