Whether you’re trying to catch an intruder or give someone a good scare, you can build this simple tripwire alarm in only a few minutes. This post is part of our Evil Week series at Lifehacker, where ...

Instructables user [EngineeringShock] has been hard at work building a laser trip wire security system, complete with a combination lock. The security system works just like you see in the movies, ...

Sometimes security doesn’t need to be overly complex to be effective. Instructables user [1234itouch] recently built a simple laser tripwire alarm that can be mounted virtually anywhere, complete with ...

If you ever feel the need to make your own salvaged part trip wire alarm, it turns out it’s a pretty easy process. Over on YouTube, Node walks you through it. All you’ll need is a piezo buzzer, a ...

While the Web is full of DIY electronics projects, few are useful as they are entertaining. That’s not the case with this one here, however — a laser tripwire alarm system, which can be used to secure ...

ARMED WITH A SHRIEK: Travelers feeling the need for an emergency alarm to summon help or scare away threatening animals or humans have used everything from compressed-air horns to loud metal whistles.

In this week's print edition, we put together some security tips for backyard cannabis growers, including scarecrow tactics and remote surveillance recommendations, as well as notes on booby trap do's ...

As part of the efforts to minimise incidents of man-animal conflict in the region, the state government has sanctioned Rs 11 lakh for the procurement and installation of trip wire alarm systems along ...