The tipping bucket rain gage is recognized as the standard for measuring rainfall and other precipitation in remote and unattended locations.

The integrated siphon mechanism delivers high levels of accuracy across a broad range of rainfall intensities. Each unit consists of a collector funnel with stainless steel leaf filter, an integrated siphon control mechanism, an outer enclosure with quick release fasteners, and base which houses the tipping bucket mechanism. The unit includes dual output reed switches with varistor protection (helps shield sensitive components against excessive transient voltage) as well as dual rainfall discharge outlets for water collection and/or analysis.

The bucket tips when precipitation of 0.01″, 0.2 mm, 0.5 mm or 1.0 mm has been collected. Each tip activates a reed switch closure which is detected by a data logger and/or telemetry system.

It’s also available with a larger collector measuring 11.1″ (282.8 mm) in diameter.

Technical Specifications

Receiver200 mm (8 inch) or 282.8 mm (11.1 inch) diameter with machined aluminum rim
SensitivityOne tip at 0.2, 0.5, 1.0 mm or 0.01 inch
MeasurementsRange: 0-700 mm/hour
Accuracy: ± 2% 25-500 mm/hour, ± 1 tip from 1-25 mm/hour
SensorTipping bucket with siphon
Siphon0.4mm capacity of rainfall - made from brass with a non-hygroscopic outer body
ContactsType: dual reed-switch (make contact), momentary
Rating:12 VA (0.5 amp max)
Duration: 0.1 second
Physical dimensionsHeight x diameter: 342 mm (13.5") x 229 mm 9"
Weight: 3 kg (6.6 lbs)
BucketChrome plated, injected moulded non-hygroscopic ABS balanced ± 0.05 gms
BaseDie-cast aluminium
Mounting holesThree (3) 10mm diameter mounting holes
Drain fittingsAble to attach 12 mm inside diameter tubing, to catch rainfall after passing through buckets
PivotsGround sapphire pivots with stainless steel shaft
Insect coversStainless steel mesh on all openings to prevent insects from entering gauge
Outer enclosureKeyed to enable the release of the outer enclosure without the need for the removal of the three securing screws

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