The PG100N is a lightweight, portable and easy-to-operate spectral PAR (Photosynthetically Active Radiation) meter for applications in agriculture and horticulture. It analyses up to 40 parameters which are important for plant growth. After measurement, the spectral data are displayed clearly in a graphical colour spectrum on the LCD touchscreen. The sensor head can be removed from the upper housing in order to take the measurements. As a stand-alone solution, the device provides the ability to perform PC software analysis and wireless measurements.