This is a great price! Last Front page at Amazon was 31.99 for one.
THIS DEAL IS LIVE NOW. In store and online for Costco members.
Works With Ring Alarm System and Samsung Smart Things
Works With Nexia Home Intelligence and Other Z-Wave Systems
Sends Mobile Alerts and Emails When You Are Home or Away
Photoelectric Smoke Sensor, Electrochemical Carbon Monoxide Sensor
Includes Test/Silence Button, 7-Year Limited Warranty