Home Slickdeals Costco Members: 2-Pack Nest Protect Wired or Battery Powered Smoke Detector $170... Slickdeals Costco Members: 2-Pack Nest Protect Wired or Battery Powered Smoke Detector $170 + Free S/H By ARCOM - 21 November 2018 157 0 SHARE Facebook Twitter Go to the deal page: Costco Members: 2-Pack Nest Protect Wired or Battery Powered Smoke Detector $170 + Free S/H