A sensing system comprising: an electronic device having at least one input port and a plurality of output ports; a hollow core sensing coil having opposite distal ends (24, 26) attached to the plurality of output ports and that receive light waves from a light source via the electronic device, the opposite distal ends (24, 26) including an end surface that is angled at a predetermined angle that minimizes optical power loss when the light waves propagate from the plurality of output ports to the hollow core sensing coil; and an adapter configured to pigtail each of the opposite distal ends (24, 26) of the hollow core sensing coil to the plurality of output ports, the adapter including an attachment face that is angled at the same predetermined angle as the end surface of the opposite distal ends (24, 26) of the hollow core sensing coil with respect to a vertical axis of the adapter, characterised in that the adapter further includes a recess defined by a recess face and an extension face, wherein the recess face extends from a distal edge of the attachment face toward the extension face and the extension face extends essentially perpendicular from the recess face, wherein the adapter further includes a slotted face extending from the extension face in a direction away from the attachment face and essentially parallel to the recess face, the slotted face having a channel defined therein that extends from the extension face of the recess to a rear face of the adapter and wherein the channel is adapted to receive one of the opposite distal ends (24, 26) of the hollow core sensing coil, a depth of the channel being less than a height of the extension face such that a gap remains between a support surface of the channel and the recess face. an electronic device having at least one input port and a plurality of output ports; a hollow core sensing coil having opposite distal ends (24, 26) attached to the plurality of output ports and that receive light waves from a light source via the electronic device, the opposite distal ends (24, 26) including an end surface that is angled at a predetermined angle that minimizes optical power loss when the light waves propagate from the plurality of output ports to the hollow core sensing coil; and an adapter configured to pigtail each of the opposite distal ends (24, 26) of the hollow core sensing coil to the plurality of output ports, the adapter including an attachment face that is angled at the same predetermined angle as the end surface of the opposite distal ends (24, 26) of the hollow core sensing coil with respect to a vertical axis of the adapter, characterised in that the adapter further includes a recess defined by a recess face and an extension face, wherein the recess face extends from a distal edge of the attachment face toward the extension face and the extension face extends essentially perpendicular from the recess face, wherein the adapter further includes a slotted face extending from the extension face in a direction away from the attachment face and essentially parallel to the recess face, the slotted face having a channel defined therein that extends from the extension face of the recess to a rear face of the adapter and wherein the channel is adapted to receive one of the opposite distal ends (24, 26) of the hollow core sensing coil, a depth of the channel being less than a height of the extension face such that a gap remains between a support surface of the channel and the recess face.