keywords: Solar radiation, digital multimeter, solar cell, solarimeter, Umudike
A microchip solar cell connected to a digital multimeter was applied in the measurement of solar radiation intensity (SRI). The calibration was carried out for thirteen weeks by placing the modified digital multimeter side by side a Standard Solarimeter at NIMET observatory station located in Umudike, Abia state, Nigeria. The calibration produced a conversion factor ................................