Made of high quality polyamide, self-extin- guishing, are used to connect sensors with LEDs. For this purpose these adapters are pro- duced in transparent polyamide. IP65 seal is obtained by inserting an O-ring in the first groove of the corrugation of flex- ible conduit. The connection between the adapter and flexible conduit occurs by axial excursion of a particular ring that secures the conduit inside the connector. Produced with Metric ISO thread in compli- ance with IEC EN 60423.