Safety isn't an issue, garage door openers wont close if the sensors are tripped, how would this be any different?
The problem is that I would bet that no more than 10% of residential door openers reverse as they should if then hit something. The photo eyes do work very well on the other hand, but they don't catch everything.
John
Seems like a good idea but what happens if you pull half way into the garage to unload the groceries and the phone rings? You forget about the car and the door comes down on your hood (or other body panel). The sensors are located 6 inches above the floor easily connecting under most vehicles. The auto stop on the opener might not crush a child to death but will surely put a nice dent in your aluminum Mercedes (and many other makes) hood or deck lid.
I don't think I want one of these unless it knows more than the beam sensor does.
Move the sensors up?
the sensors are suppose to be down low to protect children and animals. i would consider a second set of sensors. only input i really have on this. while it's an interesting idea, my wife doesnt touch the garage door. the garage is mine so why would she go in there? my brother hit me up the last time he was over that i should put a keypad on the outside to allow access from outside. i said no. the opener is on a wall switch and i shut the switch off immediately following the door closing. paranoid someone with some radio doodad can open the door and steal everything, everything!
Just installed my Garage Butler, the 6 option one I got on Amazon.
Or, would it be possible to add more sensors?
Just installed my Garage Butler, the 6 option one I got on Amazon for 36 bucks shipped.
Easy to do. My wife and I took about thirty minutes, she was there to hand me wire up on the stepladder. I don't like getting up and down, besides she thought it would be interesting and she likes it.
Works fine with my Liftmaster 3800.
Took some fiddling to place the two magnetic sensors where the rollers, etc. wouldn't snag. Hardest part, about half the time. Not that it was that hard. I used metal screws rather than the sticky tape. It gets hot here, sticky tape isn't sticky at 140.
Way too much wire with it. I cut all three leads to half length, don't need to be bundling wire.
Easy to shift times, 3 minutes is the default and that is a LONG time if you just stand there and wait.
The alarm is loud enough you can hear it over a car engine and radio.
We never forget to drop the door on the shop, but I have been afraid my wife or I will push the wrong button on one of the Homelink units while in the front yard and not realize we popped the shop door. Now I'm not worried, well worth the price.
One problem appeared with my Garage Butler. Installation and operation are as advertised. HOWEVER, when the power switch is turned OFF - to prevent the door from closing when it gets dark, as per the instructions - all the lights go off on the control unit and the button does not activate the door - BUT, depending on the time setting - the garage door will STILL close. Again, with the power switch turned OFF. The only way to stop this activation is to unplug it. Caveat emptor.
