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, … ...

Little Laser Trip Wire circuit presented here can detect movement of people or objects while passing through the laser beam and trigger security alarms as alert signals to those concerned. What is ...

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, comp… ...

LAS CRUCES, N.M.--LaserShield, developer of a plug-and-go instant security system, in April completed the acquisition of NextAlarm.com, an alarm monitoring and technology development company based in ...

LAS CRUCES, N.M.--LaserShield, developer of a plug-and-go instant security system, in April completed the acquisition of NextAlarm.com, an alarm monitoring and technology development company based in ...