Companies specifically specialized in meteorological stations for use in agriculture are Campbell Scientific, Desert Sage Technology, Spectrum Technologies and ELE.

Special sap flow measurement systems are manufactured by Dynamax and Environmental Measurement Systems.

Leaf soil humidity probes, Leaf Wetness sensors, PAR sensors and Soil moisture sesnors are provided by Delta Ohm

For spectroscopic light measurements see ASDI.

Voice answering devices are available from Sphere Communications.

For solar radiation measurement using pyranometers see the solar page.

See also evaporation.

See also plants.