Abstract: A medical system, an analyte measurement device, a medication device and a method for transcutaneously inserting an insertable element into a body tissue are disclosed. The medical system comprises: at least one electronics unit having at least one electronics component; at least one adhesive surface for attachment of the electronics unit to a skin site of a host; at least one first subsystem configured for being at least partially inserted into the host; at least one second subsystem, wherein the second subsystem comprises at least one secondary sensor, wherein the first subsystem and the second subsystem are operably connectable to the electronics unit, wherein the second subsystem is physically attachable to the medical system.