SMARTS, or Sensor MoJo Always Running The Show, allows Sensor MoJo last a long time on only two AA batteries. WiFi is a high power protocol, and communicating over WiFi drains batters faster than anyone wants. So, the WiFi portion of Sensor MoJo is turned off for most of the time and SMARTS is in charge.
SMARTS wakes up every minute and samples all sensors and then compares them to the alarms. If an alarm is triggered, SMARTS then wakes up the power-hungry WiFi and reports the alarm. Or, if it is simply time to report data to the cloud, it reports the data.
You control how often SMARTS reports the values to the cloud via the report rate. With slower report rates, the batteries will last longer.