The Apogee SP-420 portable total radiation recorder inherits the consistent measurement accuracy and easy-to-use quality of the Apogee series products. At the same time, it innovatively adopts a USB interface, integrates power supply and data transmission, and has built-in storage function, which can work independently without the need for other recorders or data collectors. Through the accompanying software, it can achieve the measurement and display of total solar radiation.

SP-420 has a built-in data storage chip that can automatically record up to 10000 measurement data without the need for other recorders or computers. It comes standard with a USB 2.0 interface, which can easily connect to various computers. By using the Apogee official free software provided, real-time display, graphical presentation, and data export of measurement data can be easily achieved (supporting CSV format).

The SP-420 portable total radiation recorder also innovatively adopts a 5V USB power supply, making it have multiple working modes. You can not only directly plug it into the USB interface of the computer, but also use 220V AC power directly through a regular USB power adapter. You can even use the commonly used mobile power bank (power bank) for mobile devices to provide working power for it.