Junior-PAM is a budget-priced chlorophyll fluorometer. To be connected to PC via USB interface (also serving as power supply). Fully operated via PC and WinControl- Software. Featuring blue (450 nm) LED for measuring light, actinic light and saturation pulses; far-red (730 nm) LED for preferential excitation of PS I. Including single fibre (1.5 mm diameter, 50 cm long), leaf clip 60°, magnetic leaf clip, WinControl-Software (Windows XP/Vista, Windows 7 and 8), USB cable and transport case. JUNIOR-PAM/W Chlorophyll Fluorometer special version with white LED for measuring light, actinic light and saturation pulses.