The SE740 optical oxygen sensor is low-maintenance and features a smooth, polished finish, making it the ideal sensor for standard industrial and hygienic applications. In addition, the digital sensor is designed to have no effect from the process flow. This is a low-maintenance optical oxygen sensor with simple sensor cap replacement.  Electrolyte replacement and polarization are not required.  Maintenance downtime is significantly reduced compared to amperometric-style sensors.  This oxygen sensor has a surface finish of <0.4 µm and uses a Silicon (FDA and USP tested) membrane, which allows it to meet FDA requirements.