JETI offers two model series of spectroradiometers: spectraval and specbos. All instruments are incredibly versatile, broadband spectroradiometers that are configured as standard for measuring spot spectral radiance and luminance. By simply attaching an optional cosine diffuser, the instrument can then also be used for measuring spectral irradiance and illuminance. Depending upon the selected model, the specbos/spectraval can measure the spectral radiance or irradiance of the light source or display between 200 – 1000 nm and software will then accurately compute all of the derived photometric and colorimetric parameters, including luminance, illuminance, CIE chromaticity, correlated colour temperature (CCT) and colour rendering index (CRI), as well as circadian and other radiometric parameters. Different versions are available together with a variety of accessories. All calibrations are NIST traceable.

Overview of available instruments

• specbos 1211-2
• specbos 2501
• spectraval 1501
• spectraval 1511