Common wire (c-wire) is not required in most applications SMART MAINTENANCE: Sensi can help monitor the ... Looks and feels like a thermostat. Has buttons and fits the same space as a traditional ...

The Emerson Sensi WiFi ST55 is part of the Thermostats ... Indicates, when using a 2-wire setup, whether or not the thermostat draws power through the wires in order to charge the internal battery ...

The Emerson Sensi Lite ST25 is part of the Thermostats ... Indicates, when using a 2-wire setup, whether or not the thermostat draws power through the wires in order to charge the internal battery ...