Weighing rain gauge Pluvio² L

heated200 cm²SDI-12

Product summary
Ott Pluvio² L weighing rain gauge is a high-precision, all-weather precipitation sensor that measures rainfall, snowfall and hail using a weight-based principle and a high-precision load cell. It provides processed outputs including precipitation amount (mm/in), intensity and bucket content.

Overview
The Ott Pluvio² L combines a hermetically sealed, individually factory-calibrated load cell with algorithms that compensate for wind, temperature and evaporation to maintain long-term accuracy. The instrument delivers reliable processed precipitation data and is engineered for continuous operation in remote and harsh environments.

Benefits

• Lifetime factory calibration and high reliability: individually calibrated, hermetically sealed load cell with factory acceptance test report for long-term stability.
• All‑weather weight-based measurement conforming to WMO No.8: direct measurement of solid and liquid precipitation to provide amount, intensity and bucket content in mm and in.
• Low total cost of ownership: virtually maintenance-free design with minimal scheduled maintenance (typically 1–2 site visits per year); optional Pluvio² L 400 variants for off-grid high-altitude sites.
• High accuracy across the full intensity range: high-sensitivity load cell, high-resolution data acquisition and approved algorithms to correct temperature- and wind-induced errors; availability ≈99%.
• Connectivity and service: embedded USB port for direct PC connection, configuration, monitoring and firmware updates; operating software for guided accuracy testing.
• Intelligent heated rim with four modes: constant temperature, time-controlled (NWS), solid-precipitation controlled and temperature-range controlled to support mains, solar or battery operation.

Specifications (table)
Measurement range (EU): 0–2 in/min (0–50 mm/min)
Interface: SDI-12
Intensity threshold: 0.01 cm/min (0.1 mm/min)
Collection volume (bucket): 60 in (1500 mm)
Collection area: 31 in² (200 cm²)
Accuracy: Amount ±0.004 in or ±1% of measured value; Intensity ±0.004 in/min, ±0.24 in/h or ±1% of measured value
Ring heater: Yes

Technical specifications

• Model family: Pluvio² L weighing precipitation gauge (weight-based measuring principle).
• Collection area: 31 in² (200 cm²).
• Maximum collection volume (bucket): 60 in (1500 mm).
• Measurement range (EU): 0–2 in/min (0–50 mm/min).
• Intensity threshold: 0.01 cm/min (0.1 mm/min).
• Accuracy: Amount ±0.004 in or ±1 %; Intensity ±0.004 in/min, ±0.24 in/h or ±1 %.
• Interface: SDI-12.
• Ring heater: integrated heated rim with 4 modes (constant, time-controlled NWS, solid-precipitation controlled, temperature-range controlled).
• Connectivity & service: embedded USB port for configuration, monitoring and firmware updates; operating program for guided accuracy testing.
• Calibration: individually factory calibrated; hermetically sealed load cell; factory acceptance test report.