pieces of plastic are being assembled and fused together the attachment mechanism 120 is inserted into the seam 130 on opposite sides of the biocontainer 100 in this way the attachment mechanism 120 is fused directly to the biocontainer 100 during the biocontainer manufacturing process thereby minimizing manufacturing steps and handling while fig1 shows the attachment mechanism 120 extending horizontally across the biocontainer the attachment mechanism 120 can be installed in any orientation as long as it passes through the geometric center of the filled biocontainer fig3 shows an alternate embodiment wherein the sensor 110 is held in place via an attachment mechanism 120 that is connected at the upper left corner and lower right corner other attachment points are also envisioned and within the scope of the invention in another embodiment a larger piece of plastic is used this piece is then folded over onto itself and fused along the open edges in this embodiment the attachment points such as those shown in fig3 must be located where the open edges are fused together as seen in the above figures the sensor attachment mechanism 120 includes a physical extension from the sidewalls of the biocontainer to the enclosed electronics this extension may include a thin film or a plastic strand or string to retain the electronics within the thermal center in some embodiments a thermoplastic.