First Alert Z-Wave Smoke and Carbon Monoxide Alarm, 3-pack – $99.99 @ Costco, Membership required.
https://www.costco.com/First-Aler…87243.ht
Features:
- 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
Product Features:
- Help keep residences and other dwellings safe with this 3 pack of battery-operated smoke and carbon monoxide combination alarms. This easy-to-install smoke and carbon monoxide combination alarm connects with other Z-Wave compatible alarms and a Z-Wave hub (sold separately).
- Alarm features photoelectric smoke-sensing technology optimized to detect larger smoke particles produced by smoldering fires, and an electrochemical carbon monoxide sensor.
- Certified for use with Nexia Home Intelligence, Ring Home Security System, and other third party Z-Wave systems; not compatible with WINK or Onelink
- Certified for use with Nexia Home Intelligence, Ring Home Security System, and other third party Z-Wave systems; not compatible with WINK or Onelink
- Includes test/silence button, side-access battery door, plus a tamper-resistant battery drawer and pins that lock the alarm to the mounting bracket
$33.33 per alarm, it appears to be cheaper than the FP Amazon deal if you need at least 3.