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LI-190R-BNC-2

LI-COR LI-190R PAR Sensors

LI-COR LI-190R PAR Sensors

Description

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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Details

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.

Notable Specifications:
  • 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’)
Image Part # Product Description Price Stock Order
LI-COR LI-190R PAR Sensors LI-190R-BNC-2 Quantum sensor with microamp output, 2m cable with BNC connector Usually ships in 3-5 days
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-50 Quantum sensor with standardized mV output, 50m cable with bare leads
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