The WS5 Series from HighFinesse is a Optical Wavelength Meter with Wavelength Range 192 to 2250 nm, Measurement Time 1500 Hz (IR-I & IR-II on request), 950 Hz (all other wavelength ranges), Wavelength Accuracy 3 pm, 500 to 3000 MHz, Input Power 0.02 to 800 µW. More details for WS5 Series can be seen below.
