LI-COR LI-200R Solar Radiation Sensors

The LI‑200R Pyranometer measures total solar radiation. In outdoor sky conditions, the LI‑200R performs comparably to first-class thermopile pyranometers.

Features

  • Weather resistant and durable in long-term outdoor deployments
  • Cosine corrected to 82° incident angles for accurate measurements
  • Detachable sensor simplifies installation and removal of sensor
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LI-COR LI-200R Solar Radiation SensorsLI-200R-BNC-2 Pyranometer with microamp output, 2m cable with BNC connector
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BNC-5 Pyranometer with microamp output, 5m cable with BNC connector
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BNC-15 Pyranometer with microamp output, 15m cable with BNC connector
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BNC-50 Pyranometer with microamp output, 50m cable with BNC connector
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BL-2 Pyranometer with microamp output, 2m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BL-5 Pyranometer with microamp output, 5m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BL-15 Pyranometer with microamp output, 15m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-BL-50 Pyranometer with microamp output, 50m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-SMV-2 Pyranometer with standardized mV output, 2m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-SMV-5 Pyranometer with standardized mV output, 5m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-SMV-15 Pyranometer with standardized mV output, 15m cable with bare leads
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LI-COR LI-200R Solar Radiation Sensors LI-200R-SMV-50 Pyranometer 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 2220 Sensor millivolt adapter (147 Ohm resistor), for use with LI-200R-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
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The LI‑200R measures total solar radiation with an unfiltered silicon photodiode. Although the LI‑200R does not measure the total solar spectrum, its measurements correspond closely to first-class thermopiles under outdoor conditions.

The crown of the sensor rapidly sheds water, reducing pooling around the sensor. It also physically blocks light that is outside the hemisphere of sensitivity, providing precise cosine response.

Ideal for agricultural, meteorological, solar energy, and environmental research, it is available with a variety of cable lengths and output signals for compatibility with most data loggers.

  • Absolute Calibration: Calibrated against an Eppley Precision Spectral Pyranometer (PSP) under natural daylight conditions. Absolute uncertainty under these conditions is ±3% typical; ±5% maximum.
  • Sensitivity: Typically 90 μA per 1,000 W m-2
  • Linearity: Maximum deviation of 1% up to 3,000 W m-2
  • Response Time: Less than 1μs (2 m cable terminated into a 147 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 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 and 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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