DFRobot SEN0640 RS485 Photoelectric Solar Radiation Sensor - 0-1800 W/m², IP67 Aluminium Housing
The DFRobot SEN0640 is a high-precision RS485 solar radiation sensor designed for professional environmental monitoring. It measures solar irradiance from 0 to 1800 W/m² within the 400–1100 nm spectrum and interfaces via Modbus-RTU protocol, making it compatible with industrial PLCs, data loggers, and microcontrollers like Arduino when paired with an RS485-to-UART adapter.
Features
- Measures solar radiation intensity from 0 to 1800 W/m² with ±5% accuracy.
- Broad spectral sensitivity range of 400–1100 nm for comprehensive solar energy assessment.
- Industrial RS485 interface with Modbus-RTU protocol for robust, long-distance communication.
- Wide operating voltage range of DC 5–30V for flexible system integration.
- IP67-rated aluminium housing with anti-dust cover ensures durability in harsh outdoor environments.
Out of stock
The DFRobot SEN0640 Photoelectric Solar Radiation Sensor utilizes a high-quality photodiode to convert incident solar energy into an electrical signal proportional to irradiance. Its sensing element is protected by a specially treated, 95% transparent cover that minimizes dust accumulation and maintains measurement accuracy over time. The sensor’s signal is conditioned internally and transmitted via a robust RS485 bus, supporting the Modbus-RTU standard for seamless integration into SCADA, environmental monitoring stations, and renewable energy management systems.
Engineered for continuous outdoor operation, the sensor features a sealed, IP67-rated aluminium enclosure that provides excellent resistance to moisture, dust, and corrosion. With a fast response time of ≤10 seconds and a non-linearity of less than ±2%, it delivers stable, reliable data for critical applications in agriculture, meteorology, and photovoltaic system performance monitoring. The wide DC 5–30V input range allows for direct connection to solar-powered systems or standard industrial power supplies.
Additional Information
| Weight | 0.367 kg |
|---|---|
| Dimensions | 21 × 16 × 11 cm |














