RIMCO RIM7499 Rain Gauge

The RIMCO RIM7499 range of siphon controlled tipping bucket rain gauges are professional instruments designed and constructed for long-term operation with minimal maintenance under all climatic conditions. All materials are corrosion resistant. These proven instruments are accurate to within 1% for rainfall rates up to 200mm/hr and 3% up to 380mm/hr.

This rain gauge can be used for several applications, such as general meteorology, hydrology, flood warning systems, remote and long-term logging deployments.

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  • Rugged and corrosion resistant construction
  • Minimal maintenance, 25 years+ deployment life
  • Low friction, non-seizing bucket bearings
  • Gold plated buckets for minimal retention
  • Dual reed switch output
  • Stable calibration
  • Built-in bubble level
  • Optional heater for operation below -30°C
  • Mounting pedestal available.


  • General meteorology
  • Water resources studies
  • Hydrology
  • Flood warning systems
  • Automatic logging systems
  • Remote and long term logging deployments



Collector Diameter203 (8”) ± 0.2mm.
Accuracy± 1% to 200mm/hr. ± 3% to 380mm/hr. Useful to over 500mm/hr.
Resolutions0.2, 0.25 and 0.5mm (0.01” and 0.02” to special order)
ContactsTwo normally open magnetically actuated reed switches. Individual protection built-in.
Switch Rating50V ac/dc at 0.5A non-inductive
Closure Timing50 millisecs min, 150 millisecs max Max bounce time 0.75 milliseconds up to 500mm/Hr
TerminationScrew termination (2.5mm2)
Dimensions300mm height 230mm body diameter 280mm base diameter
Physical5.5kg net weight 7.0kg shipping weight 330x330x430mm packing carton
MaterialsCollector Copper
JacketJacket Stainless Steel
BaseBase Cast Marine Grade Aluminium
BucketGold Plated Brass
BridgeAnodized Marine Grade Aluminium
Switch HolderDelrin®
FastenersStainless Steel
Data LoggerSeveral models available depending on application requirements. Some data loggers may be installed within the body of the rain gauge.
Heating Option12 or 24V ac/dc (48W max) operation with electronic thermostatic control (P/N 7499TCH).Specify operating voltage at time of order.
Mounting OptionA rugged mounting pedestal that elevates the collection rim 1m above ground level (P/N 8000PED1).
OrderingRIM7499020 0.2mm bucket. RIM7499025 0.25mm bucket. RIM7499050 0.5mm bucket. Order options as required.
Non-siphon and imperial resolution versions are also available with differing accuracy specifications. Other RIMCO rain gauge models are also available with 200cm2 (RIM8500), 400cm2 (RIM8400) and 300mm (12”)