Home Amazon Goldbox First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated,... Amazon Goldbox First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated, Pack of Two By ARCOM - 11 February 2018 159 0 SHARE Facebook Twitter Go to the deal page: First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated, Pack of Two List Price: $171.99 Deal Price: $59.46 You Save: $14.91 (20%) First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated, Pack of Two Expires Feb 26, 2018