A successive approximation analog to digital converter employs a binary-weighted digital to analog converter to perform a non-binary search in determining a digital representation of a sample of an analog signal. The force devices of the initial reeling device and the loading device are primarily utilized to effect the linear load in the nip between the reel formed around the reeling shaft and the surface drive apparatus or the like, the linear load being adjusted during the reeling by means of force devices in such a manner that the desired linear load is attained as a function of given factors. The display system comprises and one or more remote devices and a host display communicating on a UWB wireless network. The lens mount member includes a flexible mounting element configured to be attached to the substrate and permit movement of the lens mount body toward and away from the sensor housing.