Yokogawa has newly developed a wireless pressure sensor and wireless temperature sensor as new models in the line-up of "Sushi Sensor" wireless solutions for the Industrial Internet of Things (IIoT) to improve the efficiency of equipment maintenance in plants. These sensors use combinations of separate modules, the XS110A wireless communication module, and the XS530 pressure measurement module or XS550 temperature measurement module. This paper introduces the background of adopting separate modules and the technology used in the wireless pressure sensor and the wireless temperature sensor while satisfying intrinsic safety.
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