3 ms·

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by dalore 10y ago

https://www.amazon.com/Homesafe-Safety-Motion-Detector-Sensor/dp/B00YWDDCOW https://www.amazon.com/Homesafe-Safety-Motion-Detector-Senso... Homesafe Safety Beam Laser Motion Detector Sensor & Alert Only $39.99!

runeks 10y ago
> This high tech device creates an invisible infrared beam up to 60 feet long and sounds a loud alarm, pleasant chime, or mutiple chimes when the beam is crossed.