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Sensortechnics sensors are devices capable of detecting the proximity of objects. They utilize the sensitivity of displacement sensors to nearby objects to identify proximity and output corresponding switching signals; therefore, proximity sensors are often referred to as proximity switches. This is a general term for sensors designed to replace contact-based detection methods such as switches, with the aim of non-contact detection of the target object. They can detect movement and presence information of the object and convert it into electrical signals. Valve Sensortechnics sensor basic principle visual transmission