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Modes, Rules, and Alerts
Pro 5S 2K Spotlight Camera
User Manual
• Carbon monoxide (CO) detectors with industry-standard T4 alarms (four intermittent
beeps, followed by a period of silence).
The Alarm Detection feature doesn’t detect alarms with other patterns.
Newer smoke detectors tend to emit a T3 alarm (three intermittent beeps followed by a
period of silence), and carbon monoxide detectors emit a T4 alarm (four intermittent beeps
followed by a period of silence).
Some examples of detector models that emit compatible T3 and T4 signals include:
• Kidde i9050
• USI5304
• First Alert 0827
• First Alert P1210
• First Alert SCO5
To determine your detector’s alarm pattern, see the instructions that came with your detector
or search online for product information.
Prepare a location to test your alarm compatibility
We recommend that you test your alarm to find out if it is compatible with the Arlo Alarm
Detection feature. Before beginning a test, make sure that:
• Your smoke and carbon monoxide detectors can emit a continuous T3 or T4 pattern for
30 seconds during the test. If you’re not sure if the test button on your alarm can do this,
check the instructions that came with your alarm or search online for product information.
• The alarm location doesn’t generate echoes and doesn’t have sounds that are louder than
the alarm.
• There won’t be motion in your camera’s field of view while you conduct the alarm test. If
the camera detects motion during the test, it might not be clear whether the camera also
detected the alarm.
Test your alarm for compatibility with Alarm Detection
1. During the test, place your camera within two feet of your alarm.
After a successful compatibility test, you can move your camera to a different location and
test the Alarm Detection range.
2. Open the Arlo Secure App.
3. Make sure that your camera is in Armed mode or another mode in which it can detect
sound and motion.