PyroScience offers cutting-edge opto-chemical sensor solutions based on compact stand-alone, PC-operated or underwater fiber-optic devices. They work with a great variety of optical (ultra-trace, ultra-fast) oxygen, (total scale) pH and T sensors for application in gas, aqueous and semi-solid samples and water bodies. The underwater AquapHOx long-term loggers and real-time transmitters are ideal for stand-alone operation during monitoring approaches and fast water column profiling down to 6000 m water depth.