Remember the days of the simple photo-electric cell? Using either a transmitter-receiver pair or a single TX/RX with a retro-reflector, the interruption of an IR beam would trigger an alarm, stop a ...

OPTEX, a leading global sensor manufacturer, is expanding its series of award-winning REDSCAN laser sensors with the launch of a new short range, indoor model that features the same proven benefits of ...

Gemalto, an Amsterdam-headquartered digital security systems developer, has this week announced the launch of two new laser-personalized innovations designed to further increase the security of ...

This circuit is a laser alarm system like the one we see in various movies. It uses a laser pointer beam to secure your valuables and property. Essentially, when the beam gets interrupted by a person, ...

All products featured on WIRED are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission. Motion detectors mean false ...