| Rain Gauge |
| Maximum rainfall rate |
12.7 cm (5 in.) per hour |
| Calibration accuracy |
±1.0% (up to 1 in./hour for the RG3 or 20 mm/hour for the RG3-M) |
| Resolution |
0.01 in. (RG3) or 0.2 mm (RG3-M) |
| Calibration |
Requires annual calibration: can be field calibrated or returned to the factory for re-calibration |
| Operating temperature range |
0° to +50°C (+32° to +122°F) |
| Storage temperature range |
-20° to +70°C (-4° to +158°F) |
| Environmental rating |
Weatherproof |
| Housing |
15.24cm (6-in.) aluminum bucket |
| Tipping bucket mechanism |
Stainless steel shaft with brass bearings |
| Dimensions |
25.72 cm height x 15.24 cm diameter (10.125 x 6 in.); 15.39 cm (6.06 in.) receiving orifice |
| Weight |
1.2 Kg (2.5 lbs) |
| Part numbers |
RG3 (0.01 in. per tip), RG3-M (0.2 mm per tip) |
| The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |
| Logger |
| Time stamp resolution |
1.0 second |
| Time accuracy |
± 1 minute per month at 25°C (77°F), see Plot B on page 10. |
| Operating range |
-20° to 70°C (-4° to 158°F) |
| Environmental rating (for logger used outside of rain gauge) |
Tested to NEMA 6 and IP67; suitable for deployment outdoors |
| NIST traceable certification |
Available for temperature only at additional charge; temperature range -20° to 70°C (-4° to 158°F) |
| Battery |
CR-2032 3V lithium battery; 1 year typical use |
| Memory |
64K bytes – 16K to 23K tips when recording rain only; 25K to 30K data points when recording rain and temperature |
| Materials |
Polypropylene case; stainless steel screws; Buna-N o-ring; PVC cable insulation |
| The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |
| Temperature Measurement |
| Measurement range |
-20° to 70°C (-4° to 158°F) |
| Accuracy |
± 0.47°C at 25°C (± 0.85°F at 77°F), A solar radiation shield is required for accurate temperature measurements in sunlight. |
| Resolution |
0.10°C at 25°C (0.18°F at 77°F) |
| Drift |
Less than 0.1°C/year (0.2°F/year) |
| Response time |
Airflow of 1 m/s (2.2 mph): 10 minutes, typical to 90% |
