1. Is there a workable solution for heating instruments on a portable, solar-paneled station in remote, Arctic environments?

2. If I will want to have a weather station in a farm, which equipment do you recommend? The objective is to get water balance and wind speed. Which is the best place in a field to set a weather station? Do you recommend to buy the complete weather stations that are on line? Thanks!

3. Can we use a PAR sensor for photosynthesis and growth?

4. How was the sun angle measured during the cosine error tests? How will the accuracy of the Apogee Sensor be affected by LED technology? How is the cosine error corrected on the Apogee sensor?

5. Which instrument is more adequate for measuring radiation inside a greenhouse?