These tunnel detectors are used wherever the highest standards of detection performance and reliability are required. Depending on the application, various evaluation electronics are available for operation. This allows even the most complex tasks to be solved. The stainless steel housing and seamless encapsulation make this sensor the first choice in the food industry. Even products with conductive components can be easily masked out thanks to state-of-the-art digital technology. The sensors are, of course, calibration- and maintenance-free.