Rika Rk200-03 Double Glasses Thermal Photoelectric Total Solar Irradiation Sensor Pyranometer. WMO Standard Compliance: Conforms to World Meteorological Organization standards for accurate solar radiation measurement. Dual Glass Transmission: Features double transmission glass for high sensitivity and reduced ambient temperature effects. IP65 Weatherproof Rating: Dust-tight and protected against water jets, suitable for harsh outdoor environments. Multiple Output Options: Supports 0-20mV, 4-20mA, 0-5V, and RS485 MODBUS-RTU signal outputs. 18-Month Quality Guarantee: Includes 18 months quality guarantee and free exchange service within one month. High Sensitivity Sensor: Uses wound-plated thermopiles with high absorption black coating for precise detection. Visual Desiccant Window: Equipped with a visual window to monitor desiccant status and ensure sensor dryness. CE Certification: Product meets CE safety and quality standards for European markets.