PYR20 pyranometer, or solar radiation sensor, measures global solar irradiance including both direct and diffuse components. Internal temperature compensation minimizes errors caused by sensor heating. Each sensor is calibrated against an Eppley Precision Spectral Pyranometer, ensuring high accuracy and consistency. Suitable for scientific research, solar power systems, greenhouses, weather stations, and other applications. Measurement range: 0 to 2000 W/m² Spectral range: 400 to 1100 nm Output options: RS485, voltage, or current Temperature compensated Level indicator with spring-loaded mounting Waterproof rating: IP66, suitable for outdoor use High accuracy, excellent stability, and consistent performance Reverse power protection and built-in TVS/ESD protection Pyr Range: 0–2000 W/m² Accuracy: ±5% Resolution: 1 W/m² Directional error: ±3% (0–70°), ±10% (70–85°) IP Rating: IP66 Operating temperature: -40°C to 85°C Installation: Three screw holes Color: Black Material: Plastic Output type: 4-20mA Package includes: 1 x Sensor Note: Only the items listed are included. Light reflection and display differences may cause slight variations in color appearance. Measurement tolerances of ±1–3 cm may apply.