Brands

PSI Plant Phenotyping and Photosynthesis Instruments

PSI (Photon Systems Instruments) FluorPen and FluorCam chlorophyll fluorometers, SpectraPen light meters and PlantPen reflectance meters, supplied and supported in India by JKG BioScience.
Request a Quote
Discuss Your Application
Plants growing in a controlled-environment chamber

PSI (Photon Systems Instruments) Plant Science Instruments in India

Photon Systems Instruments (PSI) is a Czech company that has developed instruments for biological research since 1994. Founded by Martin Trtílek, PSI designs and builds its devices in its own laboratories in the Czech Republic and has branches in the USA and Australia.
PSI is known for chlorophyll fluorescence measurement, a fast and non-invasive window into photosynthesis. Changes in Fv/Fm, the OJIP transient or non-photochemical quenching reveal stress before symptoms are visible, which makes these instruments standard tools in plant physiology, stress biology and crop research.
JKG BioScience supplies PSI handheld instruments and FluorCam imaging systems in India, and pairs them with our plant growth chambers so that conditions and measurements are both under control.
Request a PSI quotation →
PSI at a glance
  • Instruments for biological research since 1994
  • Developed and built in the Czech Republic
  • Branches in the USA and Australia
  • FluorPen and FluorCam chlorophyll fluorescence
  • SpectraPen and PlantPen meters
  • Supplied and supported in India by JKG
Product range

PSI Instruments We Supply

FluorPen and PAR-FluorPen

Handheld chlorophyll fluorometers for the lab, greenhouse and field: Ft, QY (Fv/Fm), OJIP, NPQ and light curves.

FluorCam imaging

Pulse-amplitude-modulated chlorophyll fluorescence imaging of leaves and whole plants, from handheld and closed units to open systems.

SpectraPen

Spectroradiometers and quantum meters that measure light spectrum and PAR in growth chambers, greenhouses and the field.

PlantPen NDVI and PRI

Handheld reflectance meters for plant vigour, chlorophyll content and stress.

Phenotyping in context

See how PSI instruments work alongside Plant-DiTech PlantArray.
Plant physiology & phenotyping →

Growth chambers

Hold the conditions your measurements depend on with JKG Universal Series and Percival chambers.
Plant growth chambers →
Choosing an instrument

Which PSI Instrument Fits Your Research?

If you need to…Choose
Screen many leaves quickly in the field or greenhouseFluorPen
Measure photosynthesis and light at the same leafPAR-FluorPen
See how stress spreads across a leaf or plantFluorCam imaging
Check and report light intensity and spectrum in a chamberSpectraPen
Track canopy vigour and stress with reflectancePlantPen NDVI and PRI
Why buy through JKG

PSI Equipment with Local Support

JKG BioScience supplies PSI equipment to research institutions, universities and laboratories across India. Since 2003 we have completed more than 1,000 installations for over 200 customers in 28+ states and union territories, and we support what we supply.
  • Application advice and model selection
  • Specifications and OEM documents for tenders and GeM
  • Installation, commissioning and user training
  • Preventive maintenance and AMCs
  • Breakdown support and spare parts
Tender and compliance documents

Catalogues and Compliance Documents

Catalogues, datasheets and certificates for purchase files and government tenders. Need a document that is not listed? Ask us.
PDFProduct catalogueRequest →
PDFTechnical specification sheetsRequest →
PDFOEM authorisation certificateRequest →
PDFQuality certification (ISO)Request →

Frequently Asked Questions

Yes. JKG BioScience supplies Photon Systems Instruments (PSI) FluorPen and FluorCam chlorophyll fluorometers, SpectraPen light meters and PlantPen reflectance meters in India, with training and support.

FluorPen suits quick handheld measurements of single leaves in the lab, greenhouse or field. FluorCam images fluorescence across whole leaves or plants and supports quenching and OJIP analysis.

Parameters such as Ft, QY (Fv/Fm), the OJIP transient, NPQ and light curves. The PAR-FluorPen adds a light sensor.

Light intensity and spectrum drive plant growth and change as lamps age. A SpectraPen measures PAR and spectrum, so you know what your plants actually receive and can report it in publications.

PlantPen measures reflectance indices such as NDVI and PRI, which indicate plant vigour, chlorophyll content and stress.

Other brands

Let's Build Your Research Setup

Tell Us About Your Requirement

Share your application and requirements, and our team will help you identify suitable equipment.
Discuss Your Requirement
Request a Quote