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 ...

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 ...

The STA Safety Trip Alarm from Moore Industries has been certified by exida for Safety Instrumented Systems to IEC 61508:2010 for systematic integrity up to SIL 3 and for random integrity up to SIL 2.