SIGAS SPM-O2-MODULE III is Paramagnetic oxygen gas measurement sensor, use this Magnetomechanical form, with the 3 seconds fast response time and adjustable of measurement range which can offer high performance measurement data of oxygen. The span calibration can be adjust within 85%-110% of span point, which offer more better linearity. The modules are maintenance-free, have a long lifetime, give a rapid and accurate signal response and are virtually insensitive to other gases. It has a compact design which meets high quality standards.