The manufacturer of Onset rain buckets, Texas Electronics, offers a calibration kit that makes it easy to calibrate your rain gauges in the field. (Onset uses the TE-525 series bucket for our RG3, RG3-M, S-RGA-M002 and RGB-M002 rain gauges)

These can be purchased directly from Texas Electronics here: Field Calibration Kit for Onset Rain Gauges


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