The temp/hygro sensor has been placed within a custom made forced aspirated radiation shield, this shield greatly reduces any errors caused by solar radiation by ensuring the air sample is as true as possible to the outside air, this is achieved by fan forced cooling and also by double insulation where the shield is double walled with the outer and inner chambers being exhausted by a fan, the inner tube carries the air sample whereas the outer tube acts as a thermal isolator, this helps exhaust any heat on the outer chamber from affecting the air sample within the inner chamber, the airflow through the shield is around 4m/s. This screen is 1.5m off the surface, adjustable via the threaded connecting rod on top of the screen.

Note, This rain gauge has been modified to record 0.1mm rain increments, this has been acheived by the fitting of a larger rain collector, 37.6cm in diameter is required to achieve a collection area of 10x that of the original, the drawback of this is that the display console becomes worthless at the with the 10X amount of water flowing through it (compensated in software) with the maximum rainrate now only being around 99mm/h, there is also now a larger surface area to have to wet before the water starts to run down the funnel, this amount also tends to be left in the funnel after a fall and is lost to evaporation, this can now be offset by the fact that the funnel now collects a larger amount of water and will provide readings of even the smallest amount of moisture like heavy dew, previously up to 0.9mm could be lost due to the fact that the tipper may have collected 0.9mm but was not enough for the tipper to tip, if there was no subsequent rainfall then the rain would evaporate from the tipper and the amount lost, losses are now only around 0.2/0.3mm. (the bricks are for grass control only)