A solar power meter measures the power output of solar panels by detecting the intensity of solar radiation. This tool is essential for assessing the efficiency and performance of solar power systems. PV systems have unique needs that require specialized tools for. Amazon. com: EY1600W Solar Panel Tester, Solar DC/AC Power Meter, Photovoltaic Panel Multimeter, Open Circuit Voltage Auto & Manual MPPT, Max. Power Point Voltage/Current, Backlit LCD Display : Patio, Lawn & Garden To add the following enhancements to your purchase, choose a different seller. $. Measures Solar Radiation Intensity & Daily Solar Radiation Energy, 180-Day Data Logging, Real-Time Graphs & CSV Export, Solar Irradiance Monitor Need help?A photovoltaic meter is very useful for the planning and maintenance of solar parks. Due to the fact that solar energy is nowadays one of the most important alternative. The photovoltaic meter for solar energy is the optimal hand - testing device for solar engineers, architects and hobby solar installers.