... of explosives and flammable substances); ► Spectral Range — up to 4000 cm-1 (ability to identify water and beverages, as well as identify unknown hazardous substances); ► Assay Cost — $0.00 (no expendable materials and no sample preparation). ChemExpert-T is a handheld Raman spectrometer for rapid, accurate identification of unknown substances including chemical and biological threat agents, explosives and drugs. The spectrometer provides law enforcement, military and security agencies with ...