The Onvis CS2 isn't just a contact sensor. With a 120dB siren, Thread support, and climate tracking, it's a 4-in-1 security upgrade.
YouTube on MSN
How to Make Motion Sensors Street Light In Minecraft
This video shows how to build a motion sensor street light in Minecraft using Redstone mechanics. The tutorial explains how player movement can be detected to automatically turn lights on and off, ...
How-To Geek on MSN
5 clever uses for a presence sensor you can set up in an afternoon
Do more than just turn on your lights.
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