Pre-connected analyte sensors

A system for measuring an analyte concentration in a host, the system comprising:

• a transcutaneous analyte sensor;
• a bottom housing;
• a top housing;
• sensor electronics configured to operatively connect to the transcutaneous analyte sensor, wherein the sensor electronics includes a substrate, wherein the sensor electronics are configured to be disposed between the bottom housing and the top housing;
• wherein the bottom housing includes a floor and a plurality of locating pins, the plurality of locating pins extending from the floor;
• wherein the plurality of locating pins are configured to extend into a plurality of holes in the substrate of the sensor electronics;
• and
• a conductive member configured to establish electrical connection between the sensor and the sensor electronics.