In modern industry and daily life, the replacement of sensors is an important part of maintaining equipment performance and ensuring data accuracy. With the continuous progress of technology, sensors as the perception of external information "antenna", its accuracy, durability and intelligence level is increasing. When sensors need to be replaced due to aging, damage or technological iteration, choosing the right replacement is critical. This requires technicians not only to understand the specifications and performance parameters of the original sensor, but also to consider the compatibility, ease of installation and cost effectiveness of the new sensor. Careful handling and precise calibration are also necessary to ensure that the new sensor is seamlessly integrated into the system and continues to play its critical role in monitoring, control and data transmission. Timely sensor replacement not only extends the service life of the equipment, but also improves the operating efficiency and stability of the overall system.