The PD300R-3W silicon photodiode sensor (P/N 7Z02437) is a circular geometry laser measurement sensor measuring optical power to 3 W. It has a 10 mm aperture with a removable filter. Without filter, its spectral range is 350 to 1100 nm and its power measuring range is 5 nW to 100 mW. With filter the spectral range is 430 to 1100 nm and the power range is 200 µW to 3 W. The sensor comes with a 1.5 meter cable for connecting to a laser power meter or PC interface.