Dragino WSS-08 Optical Rain Gauge Sensor (RS485)

The Dragino WSS-08 is an optical rain gauge sensor designed for rainfall measurement in weather stations, smart agriculture, environmental monitoring and hydrological applications.

Unlike traditional tipping-bucket rain gauges, the WSS-08 uses optical rain sensing technology and does not rely on moving mechanical components. This design helps reduce mechanical wear and maintenance requirements during long-term operation.

The sensor provides a pulse output corresponding to 0.1 mm of rainfall per pulse, allowing a compatible controller or data acquisition system to calculate accumulated precipitation.

With a published maximum rainfall intensity of 24 mm/min, the WSS-08 is suitable for monitoring precipitation events across a wide range of weather conditions.

Its optical measurement principle makes it useful for applications where compact installation, durability and reduced mechanical maintenance are important.

The WSS-08 can be integrated with compatible weather station equipment, including suitable Dragino WSC2-L weather station systems, enabling precipitation data to be collected and transmitted through a LoRaWAN network.

For LoRaWAN applications, the sensor must be connected to a compatible external controller. The WSS-08 does not include standalone LoRaWAN radio connectivity.

The published operating temperature range of −40°C to +60°C supports outdoor weather monitoring in demanding environmental conditions, subject to appropriate installation.

Rainfall data can be recorded and analyzed through a compatible monitoring platform to support irrigation planning, rainfall history analysis, water management and weather-related operational decisions.

The Dragino WSS-08 provides a practical optical alternative to conventional mechanical rain gauges for connected meteorological and agricultural monitoring systems.

Important: The WSS-08 is an optical rainfall measurement sensor, not merely a rain-presence detector. Its published specifications describe a pulse output of 0.1 mm per pulse. The exact electrical interface and controller wiring must be verified before installation; standalone LoRaWAN connectivity is not supported.

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🔑 Key Features

🌧️ Optical Rainfall Measurement – Detects rainfall using optical sensing technology.

📏 0.1 mm per Pulse – Pulse output corresponding to measured rainfall accumulation.

⛈️ Up to 24 mm/min Rainfall Intensity – Published maximum measurable rainfall intensity.

⚙️ No Moving Mechanical Parts – Reduces mechanical wear compared with tipping-bucket rain gauges.

🔧 Low-Maintenance Design – Suitable for long-term weather monitoring with appropriate inspection and cleaning.

🌡️ Wide Operating Temperature Range – Published operating range from −40°C to +60°C.

🌦️ Outdoor Weather Monitoring – Designed for precipitation monitoring applications.

📊 Rainfall Accumulation Monitoring – Compatible controllers can calculate rainfall totals from pulses.

📡 LoRaWAN via External Controller – Can be integrated into suitable Dragino WSC2-L systems.

🚜 Smart Agriculture – Supports rainfall monitoring for irrigation planning.

💧 Hydrological Applications – Useful for rainfall data collection and water management.

🏙️ Smart City Monitoring – Integrates precipitation measurements into environmental monitoring networks.

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🛠 Applications

🌦️ Weather Stations – Measure rainfall as part of a meteorological monitoring system.

🚜 Smart Agriculture – Track precipitation to support irrigation and crop management.

🌱 Precision Farming – Collect local rainfall data for agricultural analysis.

💧 Hydrological Monitoring – Monitor precipitation contributing to local water conditions.

🌊 Flood Monitoring Systems – Supply rainfall measurements to compatible early-warning systems.

🏙️ Smart Cities – Integrate rainfall data into environmental monitoring infrastructure.

🏫 Environmental Research – Record rainfall events for meteorological studies.

📡 LoRaWAN Weather Networks – Transmit rainfall measurements through a compatible external LoRaWAN controller.

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📦 Package Includes

• 1 × Dragino WSS-08 Optical Rain Gauge Sensor

Not included: Dragino WSC2-L controller, LoRaWAN gateway, external power supply or IoT monitoring platform.

📥 Product Downloads 

📑 Datasheet

📘 User Manual

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