Post-COVID Home Security, Part 2

Home Security, Part 1 The Level locks are part of a holistic strategy.  I added a Dakota Alert perimeter alarm which was simple, cheap with no power or internet dependency.  But it's limited to a local siren and it doesn't record someone testing the defenses. I wanted an advance warning

Home Security, Part 1

The Level locks are part of a holistic strategy.  I added a Dakota Alert perimeter alarm which was simple, cheap with no power or internet dependency.  But it's limited to a local siren and it doesn't record someone testing the defenses.

I wanted an advance warning system to detect before the perimeter alarm, a backup system that sends alerts and records.  I added an Arlo Ultra 4-camera system as each camera has 180 degree view and two motion detectors.   The more I worked with each system, the more I saw how complementary they are.



The Dakota Alert always works and rarely false alarms, isn't subject to power outages, internet problems or cancel culture.  It uses 9v batteries but I'm converting them to solar with this simple hack - a solar cell phone charger ($15) and a 9v battery with microusb connector ($10):



The Dakota frequency is much harder to jam than Arlo's wifi and its PIR sensors are different.  The native range of Dakota Alert is about twice the distance (50 ft vs 25 ft).   Arlo makes up for that with pixel processing, so the range and width are higher as long as it has an internet connection.


The difference in the PIR behavior is reflected in their coverage patterns, and what I expect from each.  Dakota is 100% coverage of entrances while Arlo is 80% coverage of property and record of test intrusions.





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