The Dragino WSS-26 is a high-performance Total Solar Radiation Sensor designed for accurate measurement of global solar irradiance in environmental monitoring, weather stations, and smart agriculture applications. With an RS485 Modbus-RTU interface for reliable data transmission, the WSS-26 covers the full solar spectrum from 0.3 µm to 3 µm, delivering precise readings even in outdoor and harsh environments.
Built with a robust housing, the sensor offers excellent resistance to water, dust and corrosion — ideal for long-term field deployments. Compatible with Dragino LoRaWAN® Weather Station Controllers, the WSS-26 integrates seamlessly into your IoT network and supports EU868 frequency band.
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💡 Key Features
📡 LoRaWAN® Connectivity – Long-range wireless transmission on EU868 (via RS485)
🌞 Total Solar Radiation Measurement – Covers 0.3 µm to 3 µm spectrum
📊 High Accuracy & Resolution – ±3 % typical accuracy, 0.1 W/m² resolution
🔌 RS485 Modbus-RTU Output – Reliable digital communication for weather stations
🌦️ Wide Measurement Range – 0 to 2000 W/m²
🌍 Outdoor-Ready Enclosure – Durable housing for all weather conditions
⚙️ Easy Integration – Works with Dragino Weather Station Controllers
⚡ Low Power Consumption – Efficient operation with minimal power draw
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🛠 Applications
☀️ Weather & Climate Monitoring – Part of LoRaWAN® weather station setups
🌾 Smart Agriculture – Solar radiation data for irrigation and crop planning
🏙️ Environmental Sensing – Outdoor radiation monitoring
📡 IoT Data Networks – Works with Dragino LoRaWAN® infrastructure
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📈 Specifications
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Spectral Range: 0.3 µm ~ 3 µm
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Measurement Range: 0 ~ 2000 W/m²
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Accuracy: ±3 % (typical)
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Resolution: 0.1 W/m²
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Output: RS485 Modbus-RTU
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Power Supply: DC 5 ~ 24 V
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Operating Temp: -40 °C ~ +70 °C
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Protection Rating: Weatherproof enclosure
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Frequency: LoRaWAN® EU868 compatible
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📥 Product Downloads
- Device Type: RS485 Solar Radiation Sensor
- Measurement Parameter: Total Solar Radiation (Irradiance)
- Measurement Range: 0 to 2000 W/m²
- Spectral Range: 300 nm to 3000 nm
- Accuracy: ±3%
- Output Interface: RS485 (Modbus RTU protocol)
- Supply Voltage: 5-24 VDC
- Ingress Protection: IP65 (Outdoor & harsh environment)
- Operating Temperature: -40°C to 70°C
- Operating Humidity: 10 to 90%RH
- Installation: Pole or bracket mounting
- Additional Features: Compact design, rugged housing, high reliability, suitable for weather stations and agricultural monitoring systems













