The TANGO is an all-in-one instrument with embedded computer and touch screen display for push button operation. It is a rugged NIR analyzer with sealed and desiccated optics for routine quality control. The cover plate around the sampling module is made from metal and allows easy cleaning. TANGO has no dedicated “front”. It can be rotated by 90° for optimized left hand or right hand operation. TANGO has its own dedicated, intuitive to use GUI. This validated software can be used in a regulated environment. Three authority levels allow trouble-free operation, even by untrained personnel.