The MS-40 second-class pyranometer is based on EKO's universal sensor platform. It can be used for agrometeorological networks and professional small-scale PV sites. The MS-40A and MS-40M offer a digital output (4-20mA or Modbus 485 RTU). The MS-40/40A/40M can be used with the optional MV-01 ventilation unit. EKO offers unique calibration that complies with the international standards of ISO/IEC 17025/9847. The sensor comes with a 5-year warranty. The recommended 2-year calibration intervals are no longer necessary.