From DK > 2, from thread ½'', universal connection G1'' for hygiene adapter, M12, transistor output
VEGAPOINT 11 is a low-cost limit switch for the detection of water-based liquids. The optional universal connection for hygiene adapters ensures reduced installation effort and leaner stock keeping and perfectly meets the requirements for hygienic processes in the food, beverage and pharmaceutical industries. It can be used without adjustment in the application.
Refer to the link for more details: https://www.vega.com/en/home_de/products/product-catalog/switching/capacitive/vegapoint-11