PlantPen PRI 200 & NDVI 300

PlantPen is a reflectance-based device that provides a convenient, low-cost method of measuring the relative chlorophyll content of a leaf sample. PlantPens measure and calculate particular reflectance indices to assess chlorophyll content, protoprotecting carotenoids, and other important features in live foliage. Two standard Plant Pen versions measure the most common indexes: PRI and NDVI.

The PlantPen model 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.
The PlantPen model NDVI 300 measures Normalized Difference Vegetation Index, which is an important indicator of chlorophyll content in plants. The device compares reflected light at two distinct wavelengths, 660 and 740 nm.

Rugged and compact PlantPens can be favorably 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 (PRI 200-B, PRI 200-S, PRI 200-U, NDVI 300-B, NDVI 300-S, NDVI 300-U) incorporate one of the three offered communication modules: Bluetooth, USB dongle, or serial cable. FluorPen 1.0 software provides visualization and data transfer routines to a computer.

Applications Customized Versions: Structural Indices Customized Versions: Chlorophyll Indices Software Technical Specification References

Photosynthesis research and education
Plant biology
Plant screening & field studies
Stress physiology
Agronomy & forestry

Besides the two standard models, we offer custom-made PlantPens that can measure other structural indices:
Normalized Difference Vegetation Index (NDVI)
Reference: Rouse et al. (1974)
Equation: NDVI = (R_NIR - R_RED ) / (R_NIR + R_RED )
Simple Ratio Index (SR)
Reference: Jordan (1969); Rouse et al. (1974)
Equation: SR = R_NIR / R_RED
Modified Chlorophyll Absorption in Reflectance Index (MCARI1)
Reference: Haboudane et al. (2004)
Equation: MCARI1 = 1.2 * [2.5 * (R₈₀₀- R₆₇₀) - 1.3 * (R₈₀₀- R₅₅₀)]
Optimized Soil-Adjusted Vegetation Index (OSAVI)
Reference: Rondeaux et al. (1996) )
Equation: OSAVI = (1 + 0.16) * (R₈₀₀- R₆₇₀) / (R₈₀₀- R₆₇₀ + 0.16)
For more information inquire at: info@psi.cz

Besides the two standard models, we offer custom-made PlantPens that can measure other chlorophyll indices:
Greenness Index (G)
Equation: G = R₅₅₄ / R₆₇₇
Modified Chlorophyll Absorption in Reflectance Index (MCARI)
Reference: Daughtry et al. (2000)
Equation: MCARI = [(R₇₀₀- R₆₇₀) - 0.2 * (R₇₀₀- R₅₅₀)] * (R₇₀₀/ R₆₇₀)
Transformed CAR Index (TCARI)
Reference: Haboudane et al. (2002)
Equation: TSARI = 3 * [(R₇₀₀- R₆₇₀) - 0.2 * (R₇₀₀- R₅₅₀) * (R₇₀₀/ R₆₇₀)]
Triangular Vegetation Index (TVI)
Reference:Broge and Leblanc (2000)
Equation: TVI = 0.5 * [120 * (R₇₅₀- R₅₅₀) - 200 * (R₆₇₀- R₅₅₀)]
Zarco-Tejada & Miller Index (ZMI)
Reference: Zarco-Tejada et al. (2001)
Equation: ZMI = R₇₅₀ / R₇₁₀
Simple Ratio Pigment Index (SRPI)
Reference: Peñuelas et al. (1995)
Equation: SRPI = R₄₃₀ / R₆₈₀
Normalized Phaeophytinization Index (NPQI)
Reference: Barnes et al. (1992)
Equation: NPQI = (R₄₁₅- R₄₃₅) / (R₄₁₅+ R₄₃₅)
Photochemical Reflectance Index (PRI)
Reference: Gamon et al. (1992)
Equation: PRI = (R₅₃₁- R₅₇₀) / (R₅₃₁+ R₅₇₀)
Normalized Pigment Chlorophyll Index (NPCI)
Reference: Peñuelas et al. (1994)
Equation: NPCI = (R₆₈₀- R₄₃₀) / (R₆₈₀+ R₄₃₀)
Carter Indices
Reference: Carter (1994), Carter et al. (1996)
Equation: Ctr1 = R₆₉₅ / R₄₂₀; Ctr2 = R₆₉₅ / R₇₆₀
Lichtenthaler Indices
Reference: Lichtenthaler et al. (1996)
Equation: Lic1 = (R₈₀₀ - R₆₈₀) / (R₈₀₀ + R₆₈₀); Lic2 = R₄₄₀ / R₆₉₀
Structure Intensive Pigment Index (SIPI)
Reference: Peñuelas et al. (1995)
Equation: SIPI = (R₈₀₀- R₄₅₀) / (R₈₀₀+ R₆₅₀)
Gitelson and Merzlyak Indices
Reference: Gitelson & Merzlyak (1997)
Equation: GM1 = R₇₅₀/ R₅₅₀; GM2 = R₇₅₀/ R₇₀₀)
For more information inquire at: info@psi.cz

FluorPen 1.0 software (Windows 2000, XP, or higher compatible)*
Bluetooth, USB or serial communication
Visualization and data transfer routines to Microsoft Excel
GPS mapping plug-in

Measured Parameters:
PRI (Photochemical Reflectance Index)
PRI = (R₅₃₁ - R₅₇₀) / (R₅₃₁ + R₅₇₀)
NDVI (Normalized Difference Vegetative Index)
NDVI = (NIR – VIS) / (NIR + VIS)
Measuring Light:
PRI: Internal dual wavelength light source R₅₃₁ = 531 nm, R₅₇₀ = 570 nm
NDVI: Internal dual wavelength light source VIS = 660 nm, NIR = 740 nm
Detector Wavelength Range:
PRI: PIN photodiode with 500 to 600 nm bandpass filters
NDVI: PIN photodiode with 620 to 750 nm bandpass filters
FluorPen/PlantPen 1.0 Software:
Windows 2000, XP, or higher*
Memory Capacity:
Up to 4 Mb
Internal Data Logging:
Up to 100,000 data points
Display:
2 x 8 characters LC display
Keypad:
Sealed, 2-key tactile response
Keypad Escape Time:
Turns off after 3 minutes of no use
Power Supply:
4 AAA alkaline or rechargeable batteries
Battery Life:
48 hours typical with full operation
Low Battery Detection:
Low battery indication displayed
Size:
170 x 57 x 30 mm; 6.7" x 2.2" x 1.2"
Weight:
180 g, 6.5 oz
Operating Conditions:
Temperature: 0 to 55 ºC; 32 to 130 ºF. Relative humidity: 0 to 95 % (non-condensing)
Storage Conditions:
Temperature: -10 to +60 ºC; 14 to +140 ºF. Relative humidity: 0 to 95 % (non-condensing)
Warranty:
1 year parts and labor

* Windows is a registered trademark of Microsoft Corporation

Zarco-Tejada P.J., Gonzales-Dugo V. and Berni J.A.J. (2011): Remote Sensing of Environment - in press.

Pricing

Orders and Payments
PlantPen PRI 200
999,- €
PlantPen NDVI 300
799,- €
PlantPen PRI 200-B
1.499,- €
PlantPen PRI 200-U
1.499,- €
PlantPen PRI 200-S
1.499,- €
PlantPen NDVI 300-B
1.299,- €
PlantPen NDVI 300-U
1.299,- €
PlantPen NDVI 300-S
1.299,- €
Mini-Computer *
390,- €
GPS Module *
249,- €
Battery Charger *
49,- €
Transport Case *
79,- €

PlantPen Versions

PlantPen PRI 200-B
Standard PRI version supplemented by the Bluetooth communication module and FluorPen 1.0 software for data transfer to a PC.

PlantPen PRI 200-U
Standard PRI version supplemented by the USB communication module and FluorPen 1.0 software for data transfer to a PC.

PlantPen PRI 200-S
Standard PRI version supplemented by the serial communication module and FluorPen 1.0 software for data transfer to a PC.

PlantPen NDVI 300-B
Standard NDVI version supplemented by the Bluetooth communication module and FluorPen 1.0 software for data transfer to a PC.

PlantPen NDVI 300-U
Standard NDVI version supplemented by the USB communication module and FluorPen 1.0 software for data transfer to a PC.

PlantPen NDVI 300-S
Standard NDVI version supplemented by the the serial communication module and FluorPen 1.0 software for data transfer to a PC.

Inquire at: info@psi.cz for other custom-made PlantPens with different structural or chlorophyll indices.

Optional Features and Accessories

Mini-Computer
Small, portable notebook: light-weight (1 kg), long battery runtime (about 4 hours), 8.9-inch display, 1 GB memory, integrated Bluetooth, WLAN and LAN, free Windows XP installed.

GPS Module
To record the exact location of the measurements performed by the pen-category instruments.

Battery Charger
To recharge batteries used in the pen-category instruments. Includes a battery charger and 4 AAA batteries. EU norm only.

Transport Case
Padded case to shelter all necessary accessories. Size: 25 x 22 x 5 cm.

Download

Software
FluorPen 1.0
OS: Win2000/XP
Language: English
Size: 2.2MB

Documents
FluorPen Series Manual
Type: PDF
Language: English
Size: 1.2MB

FluorPen Quick Guide
Type: PDF
Language: English
Size: 82kB

FluorPen Explain
Type: PDF
Language: English
Size: 2.9MB

SpectraPen Manual
Type: PDF
Language: English
Size: 247kB

AquaPen Manual
Type: PDF
Language: English
Size: 1.3MB

AquaPen Quick Guide
Type: PDF
Language: English
Size: 85kB

N-Pen Brief Guide
Type: PDF
Language: English
Size: 106kB

GFP-Pen Manual
Type: PDF
Language: English
Size: 812kB

PlantPen NDVI Manual
Type: PDF
Language: English
Size: 363kB

PlantPen PRI Manual
Type: PDF
Language: English
Size: 390kB

PlantPen NDVI, PRI Quick Guide
Type: PDF
Language: English
Size: 73,7kB

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