Capacitive proximity sensor — Advantages and Key benefits for customer It also delivers accurate and repeatable detection for reliable operation in critical applications. Its non-contact operation allows little or no wear and tear, in the end increasing its life-spans hence reducing maintenance costs. The sensor is also highly versatile as it can sense a variety of materials such metals, plastics and liquids. Meanwhile, its robust functionality maintains uninterrupted operation in those industries that can sometimes be more than a little challenging. They are making these sensors most suitable for applications where they need efficient solutions with reduced costs.