Information regarding the Sensi 2 thermostat. 

See attachments for further information. 

Bulletin:

SENSI EQUIPMENT INTERFACE MODULE SETUP AND FIRMWARE UPDATE White Rodgers’ new Sensi Equipment Interface Module (EIM) is designed to connect to new or existing Sensi Touch 2 Thermostats. Thermostats manufactured prior to the EIM launch are compatible with the EIM but will need a firmware update to connect to the EIM. The attached bulletin walks through the firmware update process. Note: The SA20 is an L52-122. The SK20B is an L52-123. The SK20B (L52-123) includes a Sensi Touch 2 that has the latest EIM-compatible firmware installed.