The SIENA spectrometer takes near-infrared spectroscopy to a new level. For the first time it offers wavelength ranges up to 2100 nm with an uncooled InGaAs array sensor. The SIENA spectrometer delivers the technical performance for precise measurements at a price suitable for integration in portable and industrial sensors. Large absorbance values can be accurately measured due to its superior sensitivity, optimized stray light suppression and high dynamic range. Delivering exceptional performance at an unprecedented price, the SIENA opens up countless new possibilities for NIR-based sensors.