M-PEA Multi Function Plant Efficiency Analyser

The M-PEA (Multi-Function Plant Efficiency Analyser) combines high quality fast fluorescence kinetic and P700+ absorbance studies with ground-breaking Delayed Fluorescence (DF) measurements providing one of the most comprehensive systems for the investigation of plant photosynthetic efficiency available. The M-PEA is a laboratory-based measurement system consisting of a control unit and sophisticated, robust sensor unit housing all optical emitters and detectors for all measurement elements. The system is controlled from a comprehensive Windows® software package (M-PEA+) which allows complex experiments to be designed, uploaded and executed by the M-PEA hardware. Recorded data is quickly downloaded to the software via a USB2.0 connection. The control unit is of convenient size with minimal footprint allowing measurements to be made in a busy lab environment where bench space is critical. The front panel consists of a power switch and indicator LED, optical sensor connection and a 4 line LCD display. The rear panel provides input for a 12V DC power supply and a USB 2.0 connection socket for interface to the M-PEA+ software running on a Windows® PC. The optical sensor unit is a robust enclosure designed to incorporate sophisticated electronics which effectively controls all of the light sources and detectors. The M-PEA-1 sensor unit includes a high intensity red actinic source, a far-red light source, the prompt fluorescence detector and the modulated emitter/detector pair for P700+ absorbance measurements. M-PEA-2 additionally includes a high sensitivity delayed fluorescence detector and a detector to measure leaf absorptivity. All the optics are located behind a quartz window which seals the sensor unit providing effective protection for the optical assemblies against dust, dirt and moisture. Please use the tabs below for full details of the different elements of the M-PEA system.


  • Advanced lab-based system for investigation of plant photosynthetic efficiency
  • M-PEA-1 variant for prompt fluorescence & P700+ modulated absorbance measurements
  • M-PEA-2 variant as M-PEA-1 with additional measurements of Delayed Fluorescence (DF) & leaf absorptivity
  • Sophisticated sensor unit with all optical emitters & detectors in a robust, enclosed housing
  • USB connection to a Windows® PC
  • Comprehensive Windows® experimental design, data transfer & analysis software

Scroll to Top

Please fill our short form and one of our team members will contact you back.