1.OD5mm with screw at the end, fix to flange or other plate by screw easily 2.OD5mm gooseneck tube easy for bend/change probe position and keep position, User can adjust the OD5mm gooseneck at small range easily, when user would like to adjust the probe at big range, he may be should adjust the bigger OD to suit for big diameter and keep probe position. 3.Chromeplate surface or other surface disposal 4.We can adjust the design to suit for client special request. Welcome to contact us for more technical details.