well 105 in advance of reaching a series of potential triggering engagements 160 the triggering engagements 160 may take any suitable form as discussed further herein below for the present example a wellbore 140 with multiple sliding sleeves 120 having triggering engagements 160 installed is depicted with a sensing dart e g the remote actuation device 110 being pumped from the surface the wellbore 140 may traverse one or more formations hydrocarbon bearing formations for example in general the wellbore 140 may extend through one or multiple zones or stages of the well 105 the remote actuation device 110 may generally take the form of an untethered object e g an object that travels at least some distance in a well passageway without being attached to a conveyance mechanism such as a slickline wireline coiled tubing sting and so forth as specific examples the untethered object may be a dart a ball or a bar however it should be appreciated that the remote actuation device 110 may take any suitable form that may be pumped into the well 105 although pumping may not be employed to move the device in the well in accordance with further implementations turning to fig2 magnetic flux lines 100 of a sensor element 200 of the remote actuation device 110 are depicted relative to a sliding sleeve 120 more specifically fig2 is a schematic view of an embodiment of a remote downhole actuation device 110 passing through a portion of a well and taking inductive measurements it should be appreciated that although the present examples are presented with reference to inductive or electro.