Onset Self Contained Battery Powered Rainfall Data Collector
The Data Logging Rain
Gauge is a fully
self-contained, battery-powered rainfall data collection and recording
system. It includes a HOBO
Event data logger integrated into a tipping-bucket rain gauge. The
RG3 automatically records up to 160" (320 cm for the RG3-M) of
rainfall data that can be used to determine rainfall rates, times and
duration. A time and date stamp is stored for each 0.01" (0.2 mm
for the RG3-M) tip event for detailed analysis.
Included with the Rain Gauge
>> HOBO Pendant Event Data Logger
>> (2) Hose Clamps and (3) Screws
Constructed from field-proven corrosion-resistant components:
aluminum housing and collector ring; stainless steel shaft and
brass bearings; tipping bucket s high-precision, injection-molded,
high impact ABS plastic.
Nonvolatile EEPROM memory retains data even if battery fails
Removable top for easy data offload
Battery check at launch
Side bracket for mast mounting (hose clamps included)
RG3: records up to 160" of rainfall data RG3-M: records up to 320cm
Resolution
RG3: 0.01" RG3-M: 0.2mm
Calibration Accuracy
RG3: ±1.0% (up to 1"/hr) RG3-M: ±1.0% (up to 20 mm/hr)
Time Stamp Resolution
1 second
Operating Range
Temperature: 0° to 50°C (32°F to 122°F)
Storage Range
Temperature: -20°C to 70°C (-4°F to 122°F)
Environmental Rating
Weatherproof
Tipping Gauge Housing
15.24cm (6") Aluminum Bucket
Tipping Gauge Mechanism
Stainless Steel Shaft with Brass Bearings
Time Accuracy
1 minute per month at 25°C (77°F)
Data Storage Capacity
Number of data points depends on rainfall rate: 16K to 23K tips when
recording rainfall only; 25K to 30K data points when recording rainfall
and temperature.
Standards Compliance
CE
Weight
1.2 Kg (2.5 lbs)
Dimensions
257.2mm Height x 152.4mm Diameter (10.125" x 6.0")
15.39 (6.06") Receiving Orifice
Temperature Measurement
Range: -20° to 70°C (-4° to 158°F) Accuracy: ±0.47°C at 25°C (±0.85°F at 77°F) Resolution: 0.10°C at 25°C (0.18°F at 77°F) Drift: Less Than 0.1°C (0.2°F) per Year Response time in Airflow (1 m/s (2.2 mph): 10 minutes typical to 90%
NOTE: A Solar Radiation Shield is Required for Accurate Temperature Measurements in Sunlight.
The 
Optic USB Base Station
Pendant Optic Base Station and Coupler
Can be used as an Optic USB based station for 