JETI specbos 2501 is the evolution of the successful models specbos 1211-2 and the spectraval series. It is a fast and precise broadband spectroradiomter, which is available in three basic models: specbos 2501, specbos 2501-NIR and specbos 2501-UV. These basic models can be customized by combining with one or more add-ons (please see below).