Feature: 1. Precise Sensor: The core component of the solar radiation sensor is a high accuracy photosensitive part, ensuring excellent stability and accuracy. Made of premium aluminum alloy, it boasts a long service life. 2. Versatile Functionality: This sensor can measure solar total radiation within the spectrum range of 0.3 to 1.1μm. When oriented downwards, it can also measure reflected radiation, and with a shading loop, it can measure scattered radiation. 3. Sturdy Construction: Equipped with a quartz glass cover processed with precise optical cold work, the sensor is effectively protected against environmental factors that could impact its performance. 4. Protective Cover: The protective cover serves as a protector during transportation and can protect the pyranometer from damage in adverse weather conditions. Simply rotate and unscrew the protective cover when in use. 5. Wide Application: With RS232 output and for Modbus protocol, this photoelectric total solar radiation sensor finds extensive use in meteorology, energy, construction, and other fields. Specification: Item Type: Solar Radiation Sensor Material: Aluminum alloy Weight: Approx. 298.00g/10.5oz Product Size: Approx. 65x52x49mm/2.56x2.05x1.93in Bottom Hole Distance: Approx. 57mm/2.24in Output: RS232 (default for Modbus protocol) Red Wire: Power positive Black Wire: Connect to device RX, computer serial port pin 2 Yellow Wire: Connect to device TX, computer serial port pin 3 Green Wire: Power negative Power Supply: 5V Spectrum Range: 300 to 1100nm Resolution: 1W/m2 Measurement Range: 0 to 1500W/m2 Sensitivity: 7 to 14μV/W•m-2 Accuracy: ±5% Load Capacity: Current output impedance RL≤250Ω Voltage output impedance RL≥1KΩ Response Time: