The Automatic Rain Gauges, we offer, are manufactured using hi-grade PVC. The Automatic Rain Gauges with event logger are designed to record detailed rainfall history including quantity, time, date, duration, and intensity. The Automatic Rain Gauge is ideal for long term rainfall recording. Functioning Of Automatic Rain Gauges Tipping Bucket Rain Gauge and collector with 8” diameter meets NWS specifications for statistical accuracy, giving one pulse when 0.2/0.254 mm rainfall is collected. The sophisticated Logger within this Tipping Bucket Rain Gauge records rainfall at a one minute resolution.