Technosource International, Inc supplies Spectrophotometer for Relative Irradiance and Emission Measurements. Technosource International, Inc offers process control, consumer electronics and medical diagnostics. The Spectrophotometer for Relative Irradiance and Emission Measurements cover the 200-885 nm range, has optical resolution of 1.0 nm [FWHM] and captures 3648 wavelengths in < 1 second. The Spectrophotometer for Relative Irradiance and Emission Measurements combines a USB4000 Spectrometer with modular accessories including an ISS-UV-VIS Integrated Sampling System, a 300 µm solarization-resistant optical fiber and a 1-cm cuvette holder for absorbance measurements. The advantage of an optical fiber based system is flexibility. With the Spectrophotometer for Relative Irradiance and Emission Measurements, changes as small at 0.01 Absorbance Units can be seen. It is a small-footprint system ideal for the laboratory and the classroom.