Analyte sensor transmitter unit configuration for a data monitoring and management system

An assembly comprising:

• a sensor subassembly comprising an analyte sensor and a sensor seal, wherein the analyte sensor comprises a first portion configured to be electrically coupled with a transmitter and a second portion configured to be inserted through a skin surface and in fluid contact with a bodily fluid of a user;
• a transmitter mount comprising a base and a locking mechanism;
• and
• an insertion mechanism configured to position the sensor subassembly against the base of the transmitter mount by causing movement of the sensor subassembly until the locking mechanism engages the sensor subassembly, wherein the movement of the sensor subassembly is impeded while the locking mechanism is engaged;
• wherein the assembly is configured to be applied to the skin surface of the user,
• wherein the insertion mechanism is further configured to be removed from the transmitter mount after the second portion of the analyte sensor is inserted through the skin surface and in fluid contact with the bodily fluid of the user, and
• wherein the transmitter mount is configured to receive a transmitter after the locking mechanism is engaged and the insertion mechanism is removed from the transmitter mount.