A cylinder assembly comprising: - a cylinder body having a cylinder chamber extending therein; - a gland member having a rod opening extending therethrough, said gland member positioned at an end of said cylinder body, a portion of said gland member is mounted in said cylinder chamber; - a cylinder rod movably arranged in said cylinder chamber and said rod opening, said cylinder rod having detectable features disposed along a length of said cylinder rod; - a sensor mounted on said gland member; said sensor being operable to read the one or more detectable features of said cylinder rod to detect the motion and the absolute position of said cylinder rod; - a sensor receiving opening is provided in said gland member, said sensor receiving opening extends from a rod opening in a radial direction to an outer wall of said gland member, - a sensor housing mechanism being provided in said sensor receiving opening, - a sensor rod assembly being provided in a longitudinal opening provided in said sensor housing mechanism, said adjustable sensor being mounted through an end surface of said sensor rod assembly, such that a free end of said adjustable sensor extends beyond the end surface of said sensor rod assembly and said sensor housing mechanism, said sensor rod assembly and said longitudinal opening having threads (290, 292) which cooperate with each other to allow for further adjustment of said sensor to properly space said sensor from said cylinder rod and to properly align said sensor, characterized by said sensor housing mechanism and said longitudinal receiving opening having threads (248, 258) which cooperate with each other to allow for the adjustment of said sensor to properly space said sensor from said cylinder rod and to properly align said sensor. - a cylinder body having a cylinder chamber extending therein; - a gland member having a rod opening extending therethrough, said gland member positioned at an end of said cylinder body, a portion of said gland member is mounted in said cylinder chamber; - a cylinder rod movably arranged in said cylinder chamber and said rod opening, said cylinder rod having detectable features disposed along a length of said cylinder rod; - a sensor mounted on said gland member; said sensor being operable to read the one or more detectable features of said cylinder rod to detect the motion and the absolute position of said cylinder rod; - a sensor receiving opening is provided in said gland member, said sensor receiving opening extends from a rod opening in a radial direction to an outer wall of said gland member, - a sensor housing mechanism being provided in said sensor receiving opening, - a sensor rod assembly being provided in a longitudinal opening provided in said sensor housing mechanism, said adjustable sensor being mounted through an end surface of said sensor rod assembly, such that a free end of said adjustable sensor extends beyond the end surface of said sensor rod assembly and said sensor housing mechanism, said sensor rod assembly and said longitudinal opening having threads (290, 292) which cooperate with each other to allow for further adjustment of said sensor to properly space said sensor from said cylinder rod and to properly align said sensor,