These "things" are in the viticulture paddocks of the University of Western Sydny - Richmond. In the foreground are new vines with their individual drip irrigation points.
They are actually air monitering units made in Sweden which are looking at global warming and the effect on our local flora. They have a stainless steel frame with clear plastic covering. The exhaust fans are stainless steel with clear PVC connecting ductwork.
This house used to belong to an old friend of ours on the other side of the river. An ideas Jim? If you get the answer correct I will buy you a beer when I see you!!
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