Description:

The DFRobot RS485 PAR Sensor offers a precise and reliable solution for measuring photosynthetically active radiation (400700nm), the light spectrum essential for plant growth. Employing sophisticated photoelectric sensing, it delivers accurate PAR readings in mol/ms, indicating the photon flux density vital for photosynthesis. Its durable IP67-rated aluminium alloy enclosure and dust-resistant optical cover ensure robust performance in harsh environments, while an integrated cosine corrector maintains measurement accuracy across varying light angles. Utilizing the RS485 interface with Modbus-RTU protocol and supporting a wide 530V DC power input, the sensor facilitates easy data acquisition and integration.

Its compatibility with Arduino via DF Robot RS485 modules enables rapid deployment for applications including optimized crop growth monitoring, detailed environmental research, and insightful plant physiological studies. This sensor provides a powerful means to precisely assess and manage the light conditions that govern plant development.

Specifications:

• Power Supply: DC 5- 30V
• Working Current: 10mA
• Output Mode: RS-485
• Measurement Range: 0-2500 mol/ms
• Wavelength Range: 400-700nm
• Accuracy: 5% (1000 mol/ms @ 550nm, 60%RH, 25C)
• Resolution: 1 mol/ms
• Response Time: 10 s
• Non-Linearity: 1%
• Annual Stability: 2%
• Cosine Response: 10%
• Operating Temperature: -25C to +60C
• Protection Level: IP67
• Sensor Cable Length: 20cm

Features:

• Operates on DC 5- 30V.
• High-precision photosensitive element.
• Level and adjustment handwheel included.
• RS-485 interface with Modbus-RTU.
• High-quality cosine corrector for reliable measurements.
• IP67 rated metal aluminum shell.

Applications:

• Measuring light intensity for optimizing crop growth and assessing plant health.
• Monitoring solar radiation for efficient solar energy generation.
• Collecting data on radiation levels to support environmental studies and ecological conservation efforts.

Documents:

• Product wiki
• Dimensional Drawing
• Communication Protocol
• Tutorial
• FAQ

Package Included:

1 x DFRobot RS485 Photosynthetically Active Radiation (PAR) Sensor (400-700nm)