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 outdoor applications. Measurement range: 0-2000 W/m² Spectral range: 400-1100 nm Output options: RS485, voltage, or current Temperature compensated for improved accuracy Equipped with level indicator and spring-loaded base for easy installation Weatherproof rating: IP66, suitable for outdoor use High accuracy, excellent stability, and long-term reliability 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°) Operating temperature: -40°C to 85°C Installation: Three screw holes Color: Black Material: Plastic Output type: 4-20 mA Package includes: 1 x Sensor Note: Other items shown in images are not included. Note: Lighting and display differences may cause slight color variations between the product image and actual item. Measurement tolerances may vary by ±1-3 cm.