This is a "Camera", not a smoke detector. This is not advertised as a smoke detector. 
This is a camera designed to "look" like a smoke detector. 

  • This Camera uses Real Time PIR Alerts, Best notifications, PIR Human Detection.
  • This Spy camera utilizes existing smoke detector Fire Alarm 120V AC Connector to supply power. 
  • Spy Camera inside a smoke detector enclosure, This device is not smoke detector.
  • WiFi enabled. - View live video feed and remote playback from anywhere in the world.
  • Can be mounted on a ceiling or on a wall. - Camera Angle 45° Down, If ceiling mounted. - 45° sideways If wall mounted.
  • 4K Resolution @ 30 FPS. - Very clear picture. - Excellent video quality. - Time and Date Stamped.
  • Sold and Live Supported from USA. Easy to setup and use. Ready to use right out of the package.  

    • Highlights:
    Matches your existing Smoke Detector Fire Alarm (See Pics)
    WiFi Enabled, Live stream video and remote playback via Phone/Tablet.
    App Wake up. Wake your camera from sleep mode via mobile App.

    Features:

    * This Camera uses Real Time PIR Alerts, PIR Human Detection
    * App wake up feature. Wake your camera up from sleep mode via mobile App.
    * True 4k HD Video. Very clear picture. Excellent video quality.
    * Hidden Wi-Fi SSID broadcast (After Setup). Can not be found on Wi-Fi network search after setup.
    * 32GB SD Card included for video storage and remote playback.
    * Records video to SD card inside camera and can also record video to your phone.
    * Very easy to setup remote live viewing and remote playback
    * Powerful app lets you fully manage multiple cameras easily.
    * Made in the USA. Competitively priced to compete with global competition.
    * Sold and Supported in The US. Get Live US tech support and the best customer service
    * This camera can be placed anywhere, home, office, warehouse, retail, etc.
    * Receive Mobile alerts, Live Video, Recording configuration through you Mobile devices.

    Easy to setup:

    1.Connect 120V AC power to the Spy Camera and wait 60 secs.
    2. Download the Mobile App while your wait.
    3. Open the Mobile App, Follow the simple steps to connect to your Wi-Fi. (Scan QR Code)
    3. Enjoy viewing live and playback anywhere in the world.

    Specifications:

    Color: HD Color
    Image sensor: 1/4" 1MP CMOS
    Image resolution: 4K
    Frame Rate: 25fps(4k)
    A/V: Video Only