The NIRQuest, is for spectral measurements in medical, pharmaceutical, environmental and process applications. It is available in versions for 9001,700 nm, 9002,100 nm and 9002,500 nm coverage. The device has lower noise electronics and a high gain mode option improving system sensitivity by a factor of five for low light-level applications and low-concentration absorbance measurements. It has SMA 905 connectors and is fully compatible with the Ocean Optics line of fibre optic accessories.