Overview Image BioLogic LP Valves Image Model EM-1 Econo UV Monitor BioLogic Low-Pressure Liquid Chromatography Components expand the preparative purification capabilities of the BioLogic LP System and other low-pressure chromatography systems with software, optional valves, and external monitors. Category Products Image LP Data View Software for BioLogic LP System Easy-to-use LP Data View software for the BioLogic LP system transforms any computer running a Windows operating system into a chart recorder. Image BioLogic LP Valves Bio-Rad offers three valve options for the BioLogic LP system: a buffer selection and automated sample loading valve, a manual sample injection valve, and a fraction collection/column bypass valve. Image Model EM-1 Econo UV Monitor The Model EM-1 Econo UV monitor is a single-wavelength detector for flowthrough monitoring of effluents from chromatographic columns, centrifugation gradients, and other devices. Image Model EG-1 Econo Gradient Monitor Conductivity monitoring is essential to optimize protein purification methods. The Model EG-1 Econo gradient monitor makes gradient monitoring and conductivity determination effortless.