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Apogee Photochemical Reflectance Index (PRI) Sensors

Measuring Photochemical Reflectance Index , the PRI sensors from Apogee cover the 532 nm (Green) and 570 nm (Yellow) ranges for the measurement of plant canopy photosynthesis and response to stress.
<p Measuring Photochemical Reflectance Index , the PRI sensors from Apogee cover the 532 nm (Green) and 570 nm (Yellow) ranges for the measurement of plant canopy photosynthesis and response to stress.

The PRI sensors are available in upward or downward facing, and with SDI-12 or analogue outputs for different applications.

S2-111-121-112-122-Apogee NDVI-PRI Sensors (Mounted)

Apogee Photochemical Reflectance Index (PRI) Sensors

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Sensor versions

SDI-12 Output:

  • S2-421-SS: Upward-facing PRI System with SDI-12 output.
  • S2-422-SS: Downward-facing PRI System with SDI-12 output.

Analogue Output:

  • S2-121-SS: Upward-facing PRI System with analogue output.
  • S2-122-SS: Downward-facing PRI System with analogue output.

Accessories

Accessories can be found on the Apogee Accessories page

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Accessories
  • AL-130 Apogee albedometer mounting bracket in use

    Apogee Accessories

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