Home Slickdeals ecobee 3 Smart Thermostat with 3 Room Sensors – $200 @Costco Wholesale Slickdeals ecobee 3 Smart Thermostat with 3 Room Sensors – $200 @Costco Wholesale By ARCOM - 11 January 2018 204 0 SHARE Facebook Twitter Go to the deal page: ecobee 3 Smart Thermostat with 3 Room Sensors – $200 @Costco Wholesale