Echo’s built-in ultrasonic motion sensing can let you easily automate lights and fans with Alexa routines, without buying anything else.
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Versonel Outdoor Motion Sensor Tracking Floodlight WiFi Security LED Light Camera (Black) Nightwatcher VSL95 Robotic, 1080p, NO Monthly Fees, Free App, Alexa, Google Assistant, Smart Things, 32GB SD : Electronics
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s Alexa can now sense the presence of people. Here's how to use the uncanny new trick - CNET
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WIRE LESS! No wiring required, no external power supply required: the self-contained controller powers the siren and itself from four AA batteries! EVEN BETTER with a SirenFob! *Additional YoLink devices required, not included.
YoLink Outdoor Security Siren and Smart Alarm Controller Kit - Loud 110 dB, Wireless, Battery-Powered, 1/4 Mile Range