I'm trying to find a garage door opener that automatically closes
after a preset time.
the only thing I'm finding is an aftermarket 'butler' that works
wirelessly, which is fine, but do any openers have this built in?
So have a decent security alarm company install a photoelectric or IR
detector across the door opening which activates after that "preset
time" you mentioned and will trigger a "burglar alarm" if a person (or
car) passes through it.
Not eggsacklt rocket surgery for a decent alarm guy to figure out how to
make that up.
They do have sensors that light up when the doors up. Only works if you
go into the house and leave it up while at home, not if you leave it up
after going to work.
Personally I've never had an issue because I never leave my door up ever.
But thats mainly due to how my house is situated.
True, but if you are there to push the button to start the close cycle, you
can kick the cat our of the way. Having it come down by itself opens new
worlds of liability.
Industrial applications lo longer have just a button to push to start the
cycle, you must hold it in until the door closes.
What if it just spuriously opens/close? Or someone just down the street
changes their controller and now it's working another one as well? All
can/do happen...one can make up any scenario one wants.
Yes, I agree. Two scenarios:
1 - A kid is killed because the controller closed spuriously. First,
someone would have to prove the controller closed spuriously, as
opposed to the kid or someone else activating it. Then, they'd
probably have to show that it was caused by a specific design flaw
that the manufacturer knew or should have known about as opposed to
some random component failure that couldn't be anticipated.
2 - Same thing, but activated by someone's controller down the
street. Extremely unlikely with today's controllers that use pseudo-
random codes. And if it happened to occur, what's the chance you
could establish that's how it happened, exactly who's controller did
3 - Door closes after 2 hr delay as provided for by the maunfacturer
and kills kid. Or kid just sticks his finger in between door sections
and gets it crushed, for which there is no effective safety emergency
stop. In this case, you have a case where the manufacturer designed
it to allow it to close unattended.
Which case do you think is easier to prove/win?
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