Manufacturers of instrumentation for measuring photosynthesis, transpiration, chlorophyll fluorescence, sap flow, and gas exchange.

Manufacturer of products used to measure radiation, leaf temperature, chlorophyll concentration, air and soil temperature and barometric pressure.

Manufacturers of portable, photosynthesis analysis systems and miniature spectrometers.

Manufacturers of oxygen electrodes and chlorophyll fluorescence systems for the measurement of cellular respiration and photosynthesis in the field or laboratory.

Manufacturer of electronic instrumentation for environmental, agricultural and ecological research.

Links to suppliers of equipment used by ecophysiologists.

Manufacturer of pressure chamber instruments for measuring plant water potential and irrigation scheduling. Contains product information as well as tutorials on using a pressure bomb.

Manufacturer of portable photosynthesis/respiration measurement instrumentation, CO2 and H2O Infrared Gas Analyzers for lab and field, portable spectrometer, and environmental sensors.

Producer of sophisticated photosynthesis measuring systems. The product line ranges from PAM Chlorophyll Fluorometers to measuring systems of plant gas exchange for physiological and ecophysiological research.