Eisco-Spectroscope-Kit-Eisco-PH100QA-p-This-industry-standard-spectroscope-can-be-used-for-measuring-light-wavelengths-&-colours-from-various-light-sources-The-spectroscope-measures-wavelengths-from-400-to-700nm-for-detailed-examination-p-Eisco-PH100QA-Spectroscope-Kit