Home > Products > Pocket-Sized Instruments >

PAR-FluorPen FP 100-MAX-LM

PAR-FluorPen FP 100-MAX-LM includes all features of the FluorPen FP 100-MAX, i.e., it measures chlorophyll fluorescence parameters Ft, QY, NPQ, OJIP, and Light Curve (QY).

Besides that, the PAR-FluorPen incorporates an integrated Light Meter for direct digital readouts of Photosynthetically Active Radiation (PAR) in the range from 400 to 700 nm, the span in which plants use energy during photosynthesis. PAR is measured as Photosynthetic Photon Flux Density (PPFD), which is indicated by units of quanta (photons) per unit time per unit surface area. The sensor has a uniform response to photons withing the 400-700 nm waveband. Instant readouts are provided as average values of 20 measurements.

Sample holder is a clip for gentle fixing of a leaf sample and its short duration dark adaptation. “D” version of the PAR-FluorPen with detachable leaf-clips is suitable for experiments where long term dark adaptation is needed.

Measured data are sequentially stored in the internal PAR-FluorPen memory. Data transfer to a PC is via USB or Bluetooth communication. Comprehensive FluorPen 1.0 software provides data transfer routines and many additional features for data presentation in tables and graphs..

  • PAR
    Photosynthetically Active Radiation measured as Photosynthetic Photon Flux Density (PPFD).
  • FT
    Continuous fluorescence yield in non-actinic light. FTis equivalent to F0 if the leaf sample is dark-adapted.
  • QY
    Photosystem II Quantum Yield. QY is equivalent to FV/FM in the dark-adapted samples and to FV ' /FM ' in the light-adapted samples.
  • OJIP Analysis
    Application of chlorophyll fluorescence fast-transient analysis (OJIP) is a simple and non-invasive tool to monitor chloroplast function. Provided OJIP analysis is used as sensitive and reliable fast test for the functionality and vitality of photosynthetic system.
  • NPQ - Non-Photochemical Quenching
    Provided are two predefined NPQ protocols differing in the duration of light exposure and dark recovery phase as well as in the number of intervals between the pulses. It is typically used for quantification of photochemical and non-photochemical quenching in dark-adapted samples.
  • Light Curve
    There are three predefined Light Curve protocols based on pulse modulated fluorometry differing in number and duration of single light phases and light intensities. Light Curve protocols provide successive measurements of the sample photosynthesis under various light intensities of continuous illumination relating the rate of photosynthesis to photon flux density.
  • Different leaf-clips for gentle but firm sample holding:
  • Standard leaf-clip: suitable for experiments where short term dark adaptation is needed
    Standard Leaf-Clip
  • Open leaf-clip: suitable for measurements in ambient light (experiments where no dark adaptation is required)
    Open Leaf-Clip
  • Customized sample holders: for instance, for mosses, lichens and other experimental material
    Open Leaf-Clip
  • Detachable leaf-clips: suitable for experiments where long term dark adaptation is needed. They also allow simultaneous dark-adaptation of several leaves using several clips in situ under light, and then doing the readings one after another by attaching the device unit to each clip.
    Open Leaf-Clip

    Open Leaf-Clip
  • Photosynthesis research
  • Education
  • Plant & molecular biology
  • Agriculture
  • Biotechnology
  • PAR FluorPen
  • Two predefined NPQ protocols differing in the duration of light exposure and dark recovery phase as well as in the number of intervals between the pulses
  • Typically used for quantification of photochemical and non-photochemical quenching in dark-adapted samples
  • NPQ 1 protocol: light duration 60s, 5 pulses; dark recovery duration 88s, 3 pulses
  • NPQ 2 protocol: light duration 200s, 10 pulses; dark recovery duration 390s, 7 pulses
  • NPQ Protocol Visualization
    NPQ Protocol Visualization
  • Three predefined protocols differing in number and duration of single light phases and light intensities
  • Based on pulse modulated fluorometry
  • Successive measurments of the sample photosynthesis under various light intensities of continuous illumination
  • Light response curve relating the rate of photosynthesis to photon flux density
  • Light Curve Protocol Visualization
    Light Curve Protocol Visualization
  • Bckg = background
  • F0: = F50µs; fluorescence intensity at 50 µs
  • FJ: = fluorescence intensity at j-step (at 2 ms)
  • Fi: = fluorescence intensity at i-step (at 60 ms)
  • FM: = maximal fluorescence intensity
  • FV: = FM - F0 (maximal variable fluorescence)
  • VJ = (FJ - F0) / (FM - F0)
  • Vi = (Fi - F0) / (FM - F0)
  • FM / F0
  • FV / F0
  • FV/ FM
  • M0 or (dV / dt)0 = TR0 / RC - ET0 / RC = 4 (F300 - F0) / (FM - F0)
  • Area = area between fluorescence curve and FM (background subtracted)
  • Fix Area = total area above the OJIP fluorescence transient - between F40µ and F1s(background subtracted)
  • SM = area / FM - F0 (multiple turn-over)
  • Ss = the smallest Sm turn-over (single turn-over)
  • N = SM . M0 . (1 / VJ) turn-over number QA
  • Phi_P0 = 1 - (F0 / FM (or FV / FM)
  • Psi_0 = 1 - VJ
  • Phi_E0 = (1 - F0 / FM)) . Psi_0
  • Phi_D0 = 1 - Phi_P0 - (F0 / FM)
  • Phi_Pav = Phi_P0 - (SM / tFM); tFM) = Time to reach FM (in ms)
  • ABS / RC = M0 . (1 / VJ) . (1 / Phi_P0)
  • TR0 / RC = M0 . (1 / VJ)
  • ET0 / RC = M0 . (1 / VJ) . Phi_0)
  • DI0 / RC = (ABS / RC) - (TR0 / RC)
Formulas Derived From:
R.J. Strasser, A. Srivastava and M. Tsimilli-Michael (2000): The fluorescence transient as a tool to characterize and screen photosynthetic samples. In: Probing Photosynthesis: Mechanism, Regulation and Adaptation (M. Yunus, U. Pathre and P. Mohanty, eds.), Taylor and Francis, UK, Chapter 25, pp 445-483.
  • FluorPen 1.0 software (Windows 2000, XP, or higher compatible*)
  • Visualization and data transfer routines to the computer
  • Bluetooth, USB or serial communication
  • Real-time and remote control functions
  • GPS mapping plug-in
  • Export to Microsoft Excel
* Windows is a registered trademark of Microsoft Corporation
  • Measured/Calculated Parameters:
    PAR (measured as PPFD); F0 ; FT ; FM ; FM ' ; QY; OJIP; NPQ 1,2; Light Curve 1,2,3
  • Cosine Correction:
    Cosine corrected up to 80° angle of incidence
  • PAR Sensor Linearity:
    Maximum deviation 1 % - up to 3,000 µmol s-1 m-2
  • Saturating Light:
    Adjustable from 0 to 100 % (up to 3,000 µmol(photon).m-2.s-1
  • Actinic Light:
    Adjustable from 0 to 100 % (up to 1,000 µmol(photon).m-2.s-1
  • Measuring Light:
    Adjustable from 0 to 100 % (up to 0.09 µmol(photon).m-2 per pulse)
  • Emitter:
    Blue 470 nm LED - optically filtered and precisely focused
  • Optical Aperture Diameter:
    5 mm (standard and open leaf-clip); 6.5 mm (detachable leaf-clip)
  • Detector Wavelength Range:
    PIN photodiode with 667 to 750 nm bandpass filters
  • FluorPen 1.0 Software:
    Windows 2000, XP, or higher*
  • Memory Capacity (16 Mb):
    Ft: up to 149,000 measurings
    QY: up to 95,000 measurings
    LC1: up to 3,000 measurings
    LC2: up to 3,500 measurings
    LC3: up to 2,600 measurings
    NPQ1: up to 800 measurings
    NPQ2: up to 500 measurings
    OJIP: up to 1,100 measurings
  • Display:
    2 x 8 characters LC display
  • Keypad:
    Sealed, 2-key tactile response
  • Keypad Escape Time:
    Turns off after 8 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:
    120 mm x 57 mm x 30 mm 4.7" x 2.2" x 1.2"
  • Weight:
    180 g, 6.5 oz
  • Sample Holder:
    Mechanical leaf clip
  • 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
  • DYAKOV M.Y., INSAROVA I.D., KHARABADZE, D.E., PTUSHENKO V. V., and SHTAER, O. V. (2015). Influence of extreme ambient temperatures and anaerobic conditions on Peltigera aphthosa (L.) Willd. viability. Life sciences in space research 7: pp. 66-72, doi:10.1016/j.lssr.2015.10.002
  • PTUSHENKO V. V., AVERCHEVA O. V., BASSARSKAYA E. M., BERKOVICH Y. A., EROKHIN, A. N., SMOLYANINA S. O., and ZHIGALOVA, T. V. (2015). Possible reasons of a decline in growth of Chinese cabbage under a combined narrowband red and blue light in comparison with illumination by high-pressure sodium lamp. Scientia Horticulturae, 194: pp. 267-277, doi:10.1016/j.scienta.2015.08.021.
  • OREKHOV D.I., V., YAKOVLEVA S. N., GORYACHEV F. F., PROTOPOPOV F.F., and ALEKSEEV, A.A. (2015). The use of parameters of Chlorophyll a fluorescence induction to evaluate the state of plants under anthropogenic load. Biophysics, 2015, Vol. 60, No. 2, pp. 263–268, doi: 10.1134/S0006350915020128
  • FESENKO I. A., ARAPIDI G. P., SKRIPNIKOV A. Y., ET AL. (2015). Specific pools of endogenous peptides are present in gametophore, protonema, and protoplast cells of the moss Physcomitrella patens. Pesticide Biochemistry and Physiology. Volume 15, Pages 1-16. DOI 10.1186/s12870-015-0468-7
  • HUMPLÍK J. F., LAZÁR D., FÜRST T. ET AL. (2015). Automated integrative high-throughput phenotyping of plant shoots: a case study of the cold-tolerance of pea (Pisum sativumL.). Plant Methods. Volume 11, Pages 1-11. DOI 10.1186/s13007-015-0063-9
  • TRIPATHI D. K., SINGH V. P., PRASAD S. M. ET AL. (2015). Silicon-mediated alleviation of Cr(VI) toxicity in wheat seedlings as evidenced by chlorophyll florescence, laser induced breakdown spectroscopy and anatomical changes. Ecotoxicology and Environmental Safety, Volume 113, Pages 133-144. DOI:10.1016/j.ecoenv.2014.09.029
  • AJIGBOYE O. O., MURCHIE E., RAY R. V. (2014). Foliar application of isopyrazam and epoxiconazole improves photosystem II efficiency, biomass and yield in winter beat. Pesticide Biochemistry and Physiology. Volume 114, Pages 52–60. DOI:10.1016/j.pestbp.2014.07.003
  • CALDERÓN R., LUCENA C., TRAPERO-CASAS J. L. ET. AL. (2014). Soil temperature determines the reaction of olive cultivars to Verticillium dahliae pathotypes. PLoS One. Volume 9. DOI:10.1371/journal.pone.0110664, http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0110664
  • JUETERBOCK A., KOLLIAS S., SMOLINA I. ET AL. (2014). Thermal stress resistance of the brown alga Fucus serratusalong the North-Atlantic coast: Acclimatization potential to climate change. Marine Genomics. Volume 13, Pages 27-36. DOI:10.1016/j.margen.2013.12.008, http://www.sciencedirect.com/science/article/pii/S1874778713000871
  • PTUSHENKO V. V., PTUSHENKO O. S. AND TIKHONOV A. N. (2014) Chlorophyll Fluorescence Induction, Chlorophyll Content, and Chromaticity Characteristics of Leaves as Indicators of Photosynthetic Apparatus Senescence in Arboreous Plants. Biochemistry (Moscow). Volume 79, Issue 3, Pages 260-272. DOI: 10.1134/S0006297914030122
  • RASOOL B., KARPINSKA B., KONERT G. ET AL. (2014). Effects of light and the regulatory B-subunit composition of protein phosphatase 2A on the susceptibility of Arabidopsis thaliana to aphid (Myzus persicae) infestation. Frontiers in Plant Science. Volume 5. DOI: 10.3389/fpls.2014.00405, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4140078/
  • THWE A. A. AND KASEMSAP P. (2014). Quantification of OJIP Fluorescence Transient in Tomato Plants Under Acute Ozone Stress. Kasetsart Journal: Natural Science, Volume 48, Page 665 – 675.
  • AROCA R., RUIZ-LOZANO M. J., ZAMARREÑO A. M., ET AL. (2013). Arbuscular mycorrhizal symbiosis influences strigolactone production under salinity and alleviates salt stress in lettuce plants. Journal of Plant Physiology, Volume 170, Issue 1, Pages 47-55. DOI:10.1016/j.jplph.2012.08.020
  • ESTRADA B., AROCA R., BAREA J. M. ET. AL. (2013). Native arbuscular mycorrhizal fungi isolated from a saline habitat improved maize antioxidant systems and plant tolerance to salinity. Plant Science. Volume 201-202, Pages 42-51. DOI:10.1016/j.plantsci.2012.11.009, http://www.sciencedirect.com/science/article/pii/S0168945212002427
  • GAJEWSKA E., DROBIK D., WIELANEK M. ET AL. (2013). Alleviation of nickel toxicity in wheat (Triticum aestivum L.) seedlings by selenium supplementation. Biological Letters. Volume 50, Issue 2, Pages 65–78. DOI: 10.2478/biolet-2013-0008
  • PTUSHENKO V.V., PTUSHENKO E. A., SAMOILOVA O. P. ET AL. (2013). Chlorophyll fluorescence in the leaves of TRADESCANTIA species of different ecological groups: Induction events at different intensities of actinic light. Biosystems. Volume 114, Issue 2, Pages 85–97. DOI:10.1016/j.biosystems.2013.08.001
  • SHAKHATREH Y., CARVALHO P., FOULKES J. ET AL. (2013). ACLIMAS annual meeting – Rabat, 23 October 2013. http://www.aclimas.eu/Reports-Document/ACLIMAS%20SWIM-DP%202nd%20Annual%20Meeting,%20Rabat,%2023-24%20October%202013/ACLIMAS,%20Jordan%20achievements%20and%20future%20plans.pdf
  • VREDENBERG W. AND PAVLOVIČ A. (2012). Chlorophyll a fluorescence induction (Kautsky curve) in a Venus flytrap (Dionaea muscipula) leaf after mechanical trigger hair irritation. Journal of Plant Physiology. Volume 170, Pages 242-250. DOI:10.1016/j.jplph.2012.09.009
  • KLEM K., AČ A., HOLUB P. ET AL. (2012). Interactive effects of PAR and UV radiation on the physiology, morphology and leaf optical properties of two barley varieties. Environmental and Experimental Botany. Volume 75, Pages 52-64. DOI:10.1016/j.envexpbot.2011.08.008, http://www.sciencedirect.com/science/article/pii/S0098847211001900
  • CHYTYK, C. J., HUCL, P. J. AND GRAY, G. R. (2011). Leaf photosynthetic properties and biomass accumulation of selected western Canadian spring wheat cultivars. Canadian Journal of Plant of Science. Volume 91, Pages 305-314. DOI: 10.4141/CJPS09163
  • COWLEY R. AND LUCKETT D. (2011) Chlorophyll fluorescence as a method to detect moisture-limiting stress in canola. 17thAustralian Research Assembly on Brassicas (ARAB)
  • KOCUREK V., VONDRA M. AND SMUTNÝ, V. (2011). Efficacy of reduced doses of bentazone assessed by instruments based on measurement of chlorophyll fluorescence. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. Volume 59, Pages 137-144. DOI: 10.11118/actaun201159010137
  • KUVYKIN V., PTUSHENKO V. V., VERSHUBSKII A. V. ET AL. (2011).Regulation of electron transport in C3 plant chloroplasts in situ and in silico: Short-term effects of atmospheric CO2 and O2. Biochimica et Biophysica Acta (BBA) - Bioenergetics, Volume 1807, Issue 3, Pages 336-347. DOI:10.1016/j.bbabio.2010.12.012
  • LUCIŃSKI R., MISZTAL L. SAMARDAKIEWICZ S. ET AL. (2011). The thylakoid protease Deg2 is involved in stress-related degradation of the photosystem II light-harvesting protein Lhcb6 inArabidopsis thaliana New Phytologist. Volume 192, Pages 74-86. DOI: 10.1111/j.1469-8137.2011.03782.x.
  • RUÍZ-SÁNCHEZ, M., ARMADA, E., MUÑOZ, Y., ET AL. (2011). Azospirillum and arbuscular mycorrhizal colonization enhance rice growth and physiological traits under well-watered and drought conditions. Journal of Plant Physiology. Volume 168, Issue 10, Pages 1031-1037. DOI:10.1016/j.jplph.2010.12.019
  • SAMOILOVA O. P., PTUSHENKO V. V., KUVYKIN V. ET AL. (2011) Effects of light environment on the induction of chlorophyll fluorescence in leaves: A comparative study of Tradescantia species of different ecotypes. Biosystems. Volume 105, Issue 1, Pages 41–48. DOI:10.1016/j.biosystems.2011.03.003
  • CESSNA S., DEMMIG-ADAMS B. AND ADAMS III W. W. (2010). Exploring Photosynthesis and Plant Stress Using Inexpensive Chlorophyll Fluorometers. Journal of Natural Resources and Life Sciences Education. Volume 39, Pages 22-30. DOI: 10.4195/jnrlse.2009.0024u
  • FERNANDEZ-MARIN B., BECERRIL J. M. AND GARCIA PLAZAOLA J. I. (2010). Unravelling the roles of desiccation-induced xanthophyll cycle activity in darkness: A case study in Lobaria pulmonaria. Planta. Volume 231, Pages 1335-1342. DOI: 10.1007/s00425-010-1129-6
  • PAVLOVIČ A., SLOVÁKOVÁ L., PANDOLFI C. ET AL. (2010). On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis). Journal of Experimental Botany, Volume 62, Pages 1991–2000. DOI: 10.1093/jxb/erq404
  • RUIZ-SÁNCHEZ M., AROCA R., MUÑOZ Y., ET AL. (2010). The arbuscular mycorrhizal symbiosis enhances the photosynthetic efficiency and the antioxidative response of rice plants subjected to drought stress. Journal of Plant Physiology. Volume 167, Pages 862-869. DOI: 10.1016/j.jplph.2010.01.018
  • HARDING S. A., JARVIE M. M., LINDROTH R. L. ET AL. (2009). A comparative analysis of phenylpropanoid metabolism, N utilization, and carbon partitioning in fast- and slow-growing POPULUS hybrid clones. Journal of Experimental Botany. Volume 60, Pages 3443-3452. DOI:10.1093/jxb/erp180
  • KUVYKIN I.V., VERSHUBSKII A.V., PRIKLONSKII V.I. ET AL. (2009). Computer simulation study of pH-dependent regulation of electron transport in chloroplasts. Biophysics. Volume 54, Pages 455-464. DOI: 10.1134/S0006350909040101
  • MACEK P., MACKOVÁ J. AND DE BELLO F., (2009). Morphological and ecophysiological traits shaping altitudinal distribution of three Polylepis treeline species in the dry tropical Andes. Acta Oecologica, Volume 35, Pages 778–785. DOI:10.1016/j.actao.2009.08.013
  • ROSESCU M. R. AND ANDREI M. (2009). The study of photosystem II efficiency on selected synanthrophic plant species. Annals Food Science and Technology. Volume 10, Pages 115-119.
  • BARTÁK, M (2008) Biophysical Methods and Approaches to Monitor In-situ Lichen Responses to Environmental Extremes. Coordination Action for Research Activities on life in Extreme Environments. Publication 2.
  • KLEM K. AND BAJEROVA, E., (2008). Adjustment of herbicide dose in sugar beet based on non-invasive chlorophyll fluorescence measurements. Agricultural And Biosystems Engineering For A Sustainable World: National Conference On Agricultural Engineering, Hersonissos, Crete, Greece, Pages 23-25.
  • WOO N. S., BADGER M. R. AND POGSON B. J. (2008) A rapid, non-invasive procedure for quantitative assessment of drought survival using chlorophyll fluorescence Plant Methods, Volume 4, Issue 27, Pages 1-14. DOI:10.1186/1746-4811-4-27


  • Orders and Payments
  • PAR-FluorPen FP 100-MAX-LM/USB
    2.289,- €
  • PAR-FluorPen FP 100-MAX-LM/BT
    2.439,- €
  • PAR-FluorPen FP 100-MAX-LM-D/USB
    2.349,- €
  • PAR-FluorPen FP 100-MAX-LM-D/BT
    2.499,- €
  • Detachable Leaf-Clips *
    140,- €
  • Recalibration of the PAR Sensor *
    100,- €
  • Mini-Computer *
    390,- €
  • Substitute USB Communication Cable *
    39,- €
  • GPS Module *
    249,- €
  • Battery Charger *
    49,- €

PAR-FluorPen Versions

PAR-FluorPen FP 100-MAX-LM
Includes an integrated Light Meter, one of the communication modules (Bluetooth or USB), FluorPen 1.0 software, protocol update, and user's guide. Measures FT, QY, NPQ, OJIP, Light Curve, and Photosynthetically Active Radiation (PAR) in the range from 400 to 700 nm. Equipped with a standard leaf-clip.

PAR-FluorPen FP 100-MAX-LM-D
Includes an integrated Light Meter, one of the communication modules (Bluetooth or USB), FluorPen 1.0 software, protocol update, user's guide. Measures FT, QY, NPQ, OJIP, Light Curve and Photosynthetically Active Radiation (PAR) in the range from 400 to 700 nm. Adapted for use with detachable leaf-clips; leaf clips sold separately.

Optional Features and Accessories

Recalibration of the PAR Sensor
Recalibration of the PAR sensor in the PAR-FluorPen device – recommended after 2 years of use.

Small, portable notebook (type according to current availability on the market).

Substitute USB Communication Cable
Substitute USB cable allowing connection between the "pen" devices and a PC (the device is delivered with one USB cable, which is included in the device price).

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

Battery Charger
Includes battery charger and 4 AAA alkaline rechargeable batteries. EU norm only.

Detachable Leaf-Clips
Supplementary detachable leaf-clips for use with the PAR-FluorPen FP 100-MAX-LM-D. 10-piece set.


FluorPen 1.0
OS: Windows 2000 / Windows XP / Windows 7 (32bit, 64bit) / Windows 8 (32 bit, 64bit)/ Windows 10 (32 bit, 64bit),
Language: English
Size: 11.1 MB

OS: Windows 7 (32bit, 64bit) and higher
Language: English
Size: 901 KB

USB Driver for Pen Devices
OS: Windows
Language: English
Size: 2.3 MB

FluorPen Series Manual
Type: PDF
Language: English
Size: 4.7 MB

FluorPen - List of References
Type: PDF
Language: English
Size: 779 KB

FluorPen Explain
Type: PDF
Language: English
Size: 2.8 MB

SpectraPen SP 100 Manual
Type: PDF
Language: English
Size: 1.4 MB

SpectraPen SP 100 - List of References
Type: PDF
Language: English
Size: 131 KB

SpectraPen LM 500 Manual
Type: PDF
Language: English
Size: 2.9 MB

PolyPen Manual
Type: PDF
Language: English
Size: 2.2 MB

PolyPen - List of References
Type: PDF
Language: English

AquaPen Manual
Type: PDF
Language: English
Size: 4.1 MB

AquaPen Manual (Czech)
Type: PDF
Language: English
Size: 4.0 MB

AquaPen - List of References
Type: PDF
Language: Czech
Size: 1.1 MB

LaiPen Manual
Type: PDF
Language: English
Size: 2.0 MB

LaiPen - List of References
Type: PDF
Language: English
Size: 135 KB

N-Pen Brief Guide
Type: PDF
Language: English
Size: 104 KB

N-Pen - List of References
Type: PDF
Language: English

PlantPen NDVI-PRI Operation Manual
Type: PDF
Language: English
Size: 2.7 MB

PlantPen - List of References
Type: PDF
Language: English
Size: 181 KB

Other Pocket-Sized-Instruments

FluorPen FP 100

FluorPen is a hand-held fluorometer that measures chlorophyll fluorescence parameters in a fully automated and rapid manner.
- Photosynthesis Research & Education
- Large plant screening programs
- Agriculture & Forestry
- Biotechnology

PAR-FluorPen FP 100-MAX-LM

PAR-FluorPen is used to measure fluorescence and Photosynthetic Photon Flux Density (PPFD) of photosynthetically active radiation (PAR).
- Photosynthesis Research & Education
- Plant & Molecular Biology
- Agriculture & Forestry
- Biotechnology

Monitoring Pen MP 100

Monitoring Pen is a robust and weather-proof version of the popular FluorPen that is intended for unattended use in a field.
- Photosynthesis Research & Education
- Long-Term, Autonomous Fluorometry Experiments

AquaPen-C AP-C 100

AquaPen-C is a new cuvette version of the popular FluorPen fluorometer. It is optimized for measuring chlorophyll fluorescence in green algae and cyanobacteria. AquaPen sensitivity 500 ng Chl/l enables measuring in natural water.
- Photosynthesis Research & Education
- Biotechnology
- Limnology & Oceanography

AquaPen-P AP-P 100

AquaPen-P is equipped with a submersible optical probe. It suits investigations in algal suspensions and natural waters. AquaPen sensitivity: 500 ng Chl/l.
- Photosynthesis Research & Education
- Phycology
- Limnology & Oceanography
- Biotechnology

SpectraPen LM 500

SpectraPen with precise radiometric calibration and integrated cosine corrector. Number of formulas and calculated parameters: PAR, Watt, Lux, Lumen, CIE color coordinates, color rendering indexes, color temperatures.
- Light Characteristics Measurements
- Light Source Testing and Quality Control
- Color Measurement

SpectraPen SP 100

SpectraPen is a handheld, programmable spectrophotometer that provides instant readings and spectral lines on interactive touch screen.
- Visible Light Source Testing
- Color Measurement
- Chemical Measurement

PolyPen RP 400

PolyPen RP 400 is a complete system for measurement of spectral reflectance on flat leaves as well as measurements of transmittance and absorbance of any external light source. Integrated software is capable of automatic calculation of all common vegetation indices.

PlantPen PRI 200 & NDVI 300

PlantPen is a low-cost, handheld device that characterizes plants by means of reflectance. The two standard versions measure PRI and NDVI.
- Photosynthesis Research & Education
- Vegetation Productivity
- Vegetation Stress Studies
- Agriculture

N-Pen N 100

N-Pen is a light-weight, battery-powered instrument that provides quick measurement of actual nitrogen content in plants throughout their growing season.
- Significant Yield Increase
- Quick Tuning of Nitrogen Management in Crops
- Saving Nitrogen Application Costs

LaiPen LP 100

LaiPen is a light-weight, battery-powered device that mesures Leaf Area Index (LAI) and Photosynthetically Active Radiation (PAR). It provides fast and easily repeatable measurements with instant readouts that can be exported to a PC for further processing.
- Studies of Canopy Productivity
- Studies of Forest Dynamism
- Remote Sensing

Video Gallery