How does the rain gauge work?
The rain gauge collects rain onto the pivot-point of a two-sided “bucket.” When one side fills, it pivots down, causing the “bucket-tip” to be recorded, emptying the bucket and bringing the empty side under the collection point. Each bucket-tip occurs when 0.04 inches (1 mm) of rain has been collected. After at least two bucket tips, software calculates rainfall in inches/hour.
