Bimetal thermometer/industrial thermometer Clear field indication; Stainless ... is mainly composed of temperature sensor element, support tube, connection device, indication dial and etc. By ... .5Enclosure DN, measure range, graduation value, protection tube diameter, insertion depth and mounting thread as per ... 60 seconds forφ8 andφ10 protection tube.Protection tube material is stainless steel, PN 6.4 ...