The cylindrical unit half way up the pole and to the right with the louvres is a solar radiation shield that would be typical for containing a thermometer and p

The cylindrical unit half way up the pole and to the right with the louvres is a solar radiation shield that would be typical for containing a thermometer and possibly a humidity sensor - the louvres let the air through without letting direct sunlight hit the thermometer and throw off its reading. But I’m sure they aren’t using it as a calibrated value (obviously they would have guidelines for placement and would know this doesn’t meet them), it’s probably just being used as an indicative reading.