You just reminded me... laser sensors for home and business alarms!I've seen some garage door obstacle sensors with lasers, though it could just be a focused beam...
You just reminded me... laser sensors for home and business alarms!I've seen some garage door obstacle sensors with lasers, though it could just be a focused beam...
Though I'm sure some might use a laser, most are just an LED one side and a photodiode or other sensor on the other.I've seen some garage door obstacle sensors with lasers, though it could just be a focused beam...
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