Story on these: They have never been used. It was installed in a rental but contractor didn't realize that the power supply of the house was not compatible to the Nest. Unfortunately the original box and manual was thrown away.
Information On Nest: https://store.google.com/us/product/nest_thermostat?hl=en-US
Comes with 1 nest thermostat and 1 Power Connector (C-wire substitute for Nest Thermostats)
Product Grade: B (Missing original box, manual)