This Ring Alarm kit provides complete wireless home security with two keypads, eight contact sensors, two motion detectors, and a base station for 2 to 4 bedroom homes.

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well enough, though ...

To arm the system, all you need to do is turn on your automation under the Settings > Automations and scenes menu via the “Automations” tab. To disable it, just turn it off. To stop the alarm once ...

Chris Wedel is a fan of all things tech and gadgets. Living in rural Kansas with his wife and two young boys makes finding ways to stay online tricky — not to mention making my homestead smarter.

Home security cameras have become a popular alternative to professionally installed security systems from companies like ADT and Vivint. Offering reasonable prices, low monthly subscription fees, and ...

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, ...

Abstract: This paper presents a laser speckle-based line sensor for real-time measurements of translational in-plane displacements along one degree of freedom (DOF) at measurement rates of several ten ...

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School of Chemical Engineering and Technology, Tianjin University, No. 135 Yaguan Road, Haihe Education Park, Jinnan District, Tianjin 300350, China ...