The ST TM-207 Solar Power Meter is a device used to measure the amount of solar power that is being produced by a solar panel or array. It is designed to measure the voltage, current, and power of a solar panel, and can be used to optimize the performance of a solar energy system. The TM-207 is a handheld device that is easy to use, with a large LCD that shows the current power output, voltage, current, and energy production. It also has a built-in data logger that can record the data for up to 1 year, which can be useful for monitoring the performance of a solar energy system over time. The TM-207 is also equipped with a USB port, which allows the user to connect the device to a computer to download the data. It has built-in software that allows the user to view the data in a graphical format, and to export the data to a spreadsheet or other program.
Transmission measurement is most suitable for measuring the effectiveness of the solar film.