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Motion detectors are usually passive infra-red (PIR) sensors - no lasers involved. Unless you can cite a consumer-grade laser-based motion detector, I think thi
by foxylad 10y ago
Motion detectors are usually passive infra-red (PIR) sensors - no lasers involved. Unless you can cite a consumer-grade laser-based motion detector, I think this means Google's data centers are protected by slightly higher level gear.
- dalore 10y agohttps://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.
- SEJeff 10y agoFrom my understanding (after doing a few weeks of research on this for my own home security) the current "top of the line" tech is the Tomographic motion detectors which build up a mesh. It has been commercialized by a security company named Xandem, some info on it: https://en.wikipedia.org/wiki/Tomography https://en.wikipedia.org/wiki/Tomography https://www.youtube.com/watch?v=Y8updJWoSxE https://www.youtube.com/watch?v=Y8updJWoSxE I'll be purchasing a Xandem system soon