Celebrating 40 years.
Quality Instrumentation for the Life Sciences

Exclusive Distributor for PP Systems in Spain

Contact: Jose F. Alvarez | Tel: +34 91 508 65 86 | Fax: +34 91 508 65 11
Email: (Sales) ventas@metrohm.es | (Support) sat@metrohm.es

PP Systems has been designing and manufacturing innovative instrumentation to enhance the research and educational experience of plant and soil scientists since 1984.

Please choose your area of interest below to learn how PP Systems is redefining the boundaries of life science research.

Photosynthesis & Chlorophyll Fluorescence

CIRAS-4 Enhancing the high-level field research experience

CIRAS-4 Portable Photosynthesis System

CIRAS-4 Portable Photosynthesis &
Chlorophyll Fluorescence System


*Chlorophyll fluorescence & photosynthesis can be measured simultaneously.

The demands of high-level field research have changed. Researchers have a lot of data to collect and analyze and not a lot of time. True portability, speed, and accuracy are key.

  • The CIRAS-4 is the fastest and most accurate mobile system for simultaneous leaf gas exchange & chlorophyll fluorescence measurement.
  • The CIRAS-4’s small system volume is optimized for high-level field performance.
  • You have full control of CO2, H2O, temperature & light
  • Perform rapid A/Ci curves in minutes with our innovative high-speed CO2 ramping technique

Data your way

Taking advantage of the CIRAS-4’s large, full-color touch display and intuitive menu system, users enjoy the freedom of presenting and monitoring their leaf gas exchange and chlorophyll fluorescence data in the format that best suits their needs.
Learn more…

Measuring leaf gas exchange?

PLC4 Leaf Cuvettes are lightweight (under 1 kg each) and offer an even wider range of temperature control. Head plates are secured in place by magnets for quick and easy change out in the lab or field.  Learn more…

Ultra-fast A/Ci curves!

Watch the simple steps to creating A-Ci curves with the CIRAS-4 in minutes. Now that there is no longer a need to define a response script for a ramp test in the CIRAS-4, the process is faster and more streamlined than ever. Learn more…

Monitor locally & remotely

Monitoring measurements locally and remotely is easy with the CIRAS-4 Portable Photosynthesis System. Simply clamp your leaf into the cuvette, start your measurement and follow it in real-time on your PC or tablet! Learn more…

TARGAS-1 The affordable solution for teaching & basic research

TARGAS-1 Portable Photosynthesis System

The TARGAS-1 is cost-effective and very easy to use. It’s robust & lightweight (2.1kg) as well as extremely reliable under harsh environmental conditions—ideal for field measurements.

  • Two non-dispersive infrared gas analyzers for CO2 & H2O ensuring accurate measurement & control of both CO2 & H2O.
  • Gas analyzers employ a non-dispersive, infrared measurement technique & microprocessor-based signal processing to achieve excellent stability & specificity to CO2 & H2O.
  • Our innovative “Auto-Zero” technology ensures fast warm-up, long-term stability, accuracy & analyzer calibration.
  • Rechargeable Li-ion battery for up to 10 hours of field operation.
  • USB flash drive for easy data transfer to your PC.
  • Innovative, large, touch display features simple, intuitive system navigation
  • Excellent viewing under bright sunlight.

Soil & Net Canopy CO2 Flux

CFLUX-1 No need for multiplexing chambers!

CFLUX-1 Automated Soil CO2 Flux System

A dedicated, self-contained system for long-term deployment & unattended operation for measurement of soil respiration. Ideal for both spatial & temporal analysis.

  • Built-in CO2 & H2O infrared gas analyzers (IRGAs). No need for multiplexing chambers!
  • Large hemispherical articulating chamber (2500 cm3)
  • Precise control over chamber opening & closing at user-defined intervals
  • Measure soil moisture & soil temperature along with flux data
  • Easily monitor remotely from phone or computer—from anywhere!
  • View sensor data & information via computer or mobile device
  • Store data directly to a USB Flash Drive or external data logger

EGM-5 Highly portable, accurate & versatile!

EGM-5 Portable CO2 Gas Analyzer with SRC-2 Soil Respiration Chamber & STP-2 Soil Temperature Probe

The popular EGM-5 Portable CO2 Gas Analyzer is the ideal solution for soil CO2 efflux, net canopy CO2 flux & more! 

  • Quick setup & intuitive software
  • Excellent stability & specificity to CO2.
  • Minimal maintenance
  • No need for factory recalibration
  • Fast warm-up
  • Long-term stability, accuracy, and analyzer calibration
  • Compact and lightweight (1.5 kg)
  • Rugged reliability under the harshest environmental conditions
  • Energy-efficient, rechargeable Li-ion battery: Up to 16 hours of operation
  • Large, high-contrast display for excellent readability in bright sun
  • A miniature, long-life air sampling pump comes standard

See how fast & easy measurements are with the EGM-5!

CO2 Gas Analysis

SBA-5 Accurate & affordable OEM or standalone solution

sba-5 co2 gas analyzer

SBA-5 CO2 Gas Analyzer


  • Environmental control rooms
  • Growth chambers
  • Incubators
  • Soil CO2 efflux
  • FACE sites
  • CO2 sequestration
  • Animal/insect respiration
  • Fruit storage
  • Breweries
  • Ambient air monitoring
  • CO2 leakage
  • Indoor air quality and safety
  • Industrial monitoring
  • Oceanography
  • Bioremediation studies
  • Atmospheric studies

The SBA-5 CO2 Gas Analyzer is your integrated or standalone solution for CO2 gas analysis!

  • It can be supplied on a printed circuit board (for easy integration into an existing system) or in a convenient, lightweight, rugged, anodized aluminum enclosure.
  • High precision, compact, non-dispersive infrared gas analyzer
  • Excellent stability & specificity to CO2.
  • Minimal maintenance
  • No recalibration required
  • Small footprint & lightweight
  • High long-term accuracy & reliability
  • Low power consumption
  • Cost-efficient
  • Dynamic or static measurement capability
  • Powerful GAS software comes standard
  • Options: Sampling pump, humidity sensor, absorber column, enclosure
SBA5 CO2 Gas Analyzer

The SBA-5 can be supplied in a rugged, anodized aluminum enclosure with a convenient USB port, gas connections, and terminal block for sensor inputs/outputs.

WMA-5 Continuous CO2 measurement for growth chambers, FACE sites & more…

CO2 gas analyzer

WMA-5 CO2 Gas Analyzer

The WMA-5 CO2 Gas Analyzer is for applications that require a high degree of accuracy & control!

  • High precision, compact, non-dispersive infrared gas analyzer
  • Automatic pressure & d temperature compensation
  • Numeric & graphical display of data
  • Convenient data storage & transfer using a USB flash drive
  • Large touch display with excellent readability
  • Built-in sampling pump & electronic flow sensor
  • Voltage, current and digital output
  • External water trap
  • Visual & audible alarm/warnings
  • Rugged IP65 enclosure
  • Optional remote monitoring from your PC or smartphone
  • Minimal maintenance
  • No recalibration required
  • Small footprint & lightweight
  • Long-term accuracy & stability
  • Low power consumption
  • Powerful GAS software comes standard
  • Options: humidity sensor, oxygen sensor, WiFi


  • Plant growth chambers
  • Environmental control rooms
  • Open top chambers (OTCs)
  • Greenhouses and nurseries
  • Incubators
  • Fruit storage
  • FACE sites
  • Breweries
  • Ambient air monitoring
  • CO2 leakage monitoring
  • Indoor air quality and safety
  • Industrial monitoring

Monitor remotely from your computer or smartphone in real-time with our WiFi option!

WMA-5 Co2 Gas Analyzer remote monitoring
remotely monitor the WMA-5

EGM-5 Highly portable, accurate & versatile!