All In One Solar Monitoring System; Kipp & Zonen Announces Razon+. Razon+ is an All In One System that Accurately Measures Direct Normal Irradiance (Dni) and Diffuse Horizontal Irradiance (Dhi), Enabling it to Calculate Reliable Values of Global Horizontal Solar Irradiance (Ghi), Sunshine Duration and Total Energy. this Affordable System has a Built In Data Logger, a Complete Web Interface, and can Easily be Extended with the Connection of a Compact Weather Station or other Modbus Sensors. Razon+ has, Solar Power ...