LI-COR LI-190R PAR Sensors

The LI-190R Quantum Sensor measures photosynthetically active radiation (PAR), which is energy that drives photosynthetic reactions in plants.

Features

  • Improved weather resistance and durability in long-term outdoor deployments
  • Uniform sensitivity to light that drives photosynthesis
  • Removable sensor simplifies installation and removal of the sensor
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LI-COR LI-190R PAR SensorsLI-190R-BNC-2 Quantum sensor with microamp output, 2m cable with BNC connector
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LI-COR LI-190R PAR Sensors LI-190R-BNC-5 Quantum sensor with microamp output, 5m cable with BNC connector
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LI-COR LI-190R PAR Sensors LI-190R-BNC-15 Quantum sensor with microamp output, 15m cable with BNC connector
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LI-COR LI-190R PAR Sensors LI-190R-BNC-50 Quantum sensor with microamp output, 50m cable with BNC connector
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LI-COR LI-190R PAR Sensors LI-190R-BL-2 Quantum sensor with microamp output, 2m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-BL-5 Quantum sensor with microamp output, 5m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-BL-15 Quantum sensor with microamp output, 15m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-BL-50 Quantum sensor with microamp output, 50m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-SMV-2 Quantum sensor with standardized mV output, 2m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-SMV-5 Quantum sensor with standardized mV output, 5m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-SMV-15 Quantum sensor with standardized mV output, 15m cable with bare leads
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LI-COR LI-190R PAR Sensors LI-190R-SMV-50 Quantum sensor with standardized mV output, 50m cable with bare leads
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LI-COR 2003S Mounting and Leveling Fixture 2003S Mounting & leveling fixture for LI-COR terrestrial light sensors
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LI-COR Sensor Extension Cables 2222SB Extension cable, for use with type BNC or SMV terrestrial light sensors, 15m
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LI-COR 100 ft. Sensor Extension Cable 2222SB-100 Extension cable, for use with type BNC or SMV terrestrial light sensors, 30m
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LI-COR BNC to Bare Lead Adapter 2200 BNC to bare lead adapter, converts BNC type sensors to BL type sensors
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LI-COR Sensor Millivolt Adapters 2290 Sensor millivolt adapter (604 Ohm resistor), for use with LI-190R-BNC, LI-191R-BNC & LI-210R-BNC sensors
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LI-COR 2420 Light Sensor Amplifier 2420-BL Light sensor amplifier, bare leads
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LI-COR 2420 Light Sensor Amplifier 2420-BNC Light sensor amplifier, BNC connector
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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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NexSens LI-COR Terrestrial Sensor Mounting Arm M-ARM Mounting arm for LI-COR terrestrial sensor, 3 ft
$95.00
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The LI‑190R uses a high-quality silicon photodiode and glass optical filters to create uniform sensitivity to light between 400 nm to 700 nm, which closely corresponds to light used by most plants. Precision optical filters block light with wavelengths beyond 700 nm, which is critical for measurements under vegetation where the ratio of infrared to visible light may be high.

Excellent cosine response provides accuracy at low solar angles. This, in combination with high resolution at low light levels, makes the LI-190R useful for determining the light compensation point in plants.

  • Absolute Calibration: ± 5% traceable to the U.S. National Institute of Standards and Technology (NIST)
  • Sensitivity: Typically 5 μA to 10 μA per 1,000 μmol s-1 m-2
  • Linearity: Maximum deviation of 1% up to 10,000 μmol s-1 m-2
  • Response Time: Less than 1μs (2 m cable terminated into a 604 Ohm load)
  • Temperature Dependence: ± 0.15% per °C maximum
  • Cosine Correction: Cosine corrected up to 82° angle of incidence
  • Azimuth: < ± 1% error over 360° at a 45° elevation
  • Tilt: No error induced from orientation
  • Detector: High stability silicon photovoltaic detector (blue enhanced)
  • Sensor Housing: Weatherproof anodized aluminum body with acrylic diffuser and stainless steel hardware; O-ring seal on the sensor base
  • Size: 2.36 cm diameter × 3.63 cm (0.93” × 1.43”)
  • Weight: 24 g head; 60 g base/cable (2 m) with screws
  • Cable Length: 2 m, 5 m, 15 m, 50 m (6.5’, 16.4’, 49.2’, 164’)
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