OTT WAD2200 Weighing Precipitation Gauge with Automatic Drainage Function

1. Product Introduction

The combination of advanced weighing technology and an automatic drainage collection system achieves high resolution and precision measurement within a compact structural design and low power consumption. It features ultra-high sensitivity for detecting the first drop of rainfall, enabling rapid identification of precipitation onset comparable to any rainfall measurement instrument. Equipped with a high-precision load cell and an embedded tipping bucket system with automatic drainage, it offers a dynamic measurement range of 0.001–720 mm/h. From a long-term historical time-series perspective, it serves as an ideal tool for continuous and stable precipitation monitoring. Calibration can be performed using reference standard weights, replacing unreliable manual calibration processes that use quantitative volumes of water in field and laboratory applications.

2. Technical Specifications

Sensor Type: Weighing Rain Gauge

Sensing Element: Sealed Load Cell

Precipitation Type: Liquid

Collection Area: 200 cm²

Capacity: 0.2 mm Tipping Bucket, Self-emptying

Range: 0.001–720 mm/h

Resolution: 0.001 mm / 0.001 mm/h

Accuracy: ±0.1 mm; ±3% ±0.1 mm/min / ±6 mm/h

Real-time: Rainfall Intensity, Cumulative Rainfall

Status: Operating Mode, Hardware

Output Interval: 1 minute (Rainfall Intensity), 1–60 minutes