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Enabling better global research outcomes in soil, plant & environmental monitoring.

PlantPen PRI 200

The PlantPen PRI 200 measures Photochemical Reflectance Index in two narrow wavelength bands centered close to 531 nm and 570 nm. PRI is sensitive to changes in carotenoid pigments that are indicative of photosynthetic light use efficiency, the rate of carbon dioxide uptake, or as a reliable water-stress index. As such, it is used in studies of vegetation productivity and stress.

  • 1 year parts and labour warranty
  • 2 x 8 LCD Display
  • Sealed 2-key tactile response keypad
  • Keypad escape time, turns off after 3 minutes of no use.

 

Rugged and compact PlantPens can be favourably used in the field, in the plant biology lab, or for education. A handy leaf clip, simple two-button operation, and a bright display make the PlantPen an easy-to-use instrument that does not disturb investigated plants (no leaf detaching or damaging). It takes four AAA alkaline batteries and is supplied in a robust case.

More sophisticated PlantPen models incorporate PC connectivity (Bluetooth or USB) and FluorPen 1.0 software provides visualisation and data transfer routines to a computer and many additional features for data presentation in tables and graphs.

Measurement Parameters

PRI (Photochemical Reflectance Index) (R531 – R570) / (R531 + R570)
Light Internal dual wavelength light source R531 = 531 nm, R570 =570 nm
Detector Wavelength Range PIN photodiode with 500 to 600 nm bandpass filters

Data

Internal Data Logging More than 100 000 data points
Memory Capacity Up to 16Mb

Operating Conditions

Temperature 0 to 55°C
Relative Humidity 0 to 95% (non condensing)

Storage Conditions

Temperature -10 to + 60°C.
Relative humidity 0 to 95% (non condensing)

Power

Power supply 4 AAA alkaline or rechargeable batteries
Battery Life 48 hours typical with full operation
Low battery protection

Dimensions

Size Length 170mm Width 57mm Height 30mm
Weight 180 g

PRI 200 PlantPen is a reflectance-based device providing a convenient, low-cost method of measuring the relative chlorophyll content of a leaf sample. PlantPen measures and calculates particular reflectance indices to assess chlorophyll content, photoprotecting carotenoids, and other important features in live foliage.
There are two models available:
The PRI 200 measures Photochemical Reflectance Index in two narrow wavelength bands centred close to 531 nm and 570 nm.
PRI is sensitive to changes in carotenoid pigments that are indicative of photosynthetic light use efficiency, the rate of carbon dioxide uptake, or as a reliable water-stress index. As such, it is used in studies of vegetation productivity and stress.

PlantPen Version

  • Standard PlantPen PRI 200 measures Photochemical Reflectance Index
  • Options include supplemented by Bluetooth, USB or serial port.

Additional Options

  • Mini computer
  • GPS
  • Battery charger
  • Transport case

Software

  • FluorPen 1.0 Software (Windows 2000, XP, or higher compatible)*
  • Bluetooth communication
  • Visualisation and data transfer routines to Microsoft Excel
  • Real-time and remote control functions
  • GPS mapping plug-in