Thessa is a beautiful and incredibly easy to use widget that allows you to control your Nest Learning Thermostat, right from Notification Center in Mac OS X Yosemite. Simply click or drag the slider to change the temperature. That's all there is to it!
Additionally, Thessa can receive messages from your Nest Protect™, so you will instantly know when smoke or carbon monoxide has been detected.
Control the temperature in your vicinity right from your iMac or even on the go from your MacBook.
Note: Use of the Thessa Widget requires at least one Nest Learning Thermostat.