he HyQuest Solutions Standard Rain Gauge model SRG is recognised as the standard for non recording type rain gauges. The SRG is fully constructed from Aluminium except for the rain measure which is made from durable plastic and has a capacity of 20 mm of rainfall. The overflow of rain is collected by a rain gauge collector which can store a volume equivalent to 300mm of rainfall.It is recommended that the gauge be read daily at a fixed time (preferably 9:00 am) after a rainfall event, to the nearest 0.2 mm of rainfall. The reading is taken by simply lifting the catch from the gauge, allowing access to both the collector and rain measure. Observe rain measure contents to determine the total rainfall. In the event of heavy rainfall where greater than 20mm of rain has fallen, the rain measure will overflow into the collector. To measure this large amount of rainfall it is simply a matter of pouring from the collector into the rain measure and totaling the amounts.