are these wired or battery operated controls?
781938
These are hard wired. They would replace the doorbell type buttons that most garages are wired with.
781939
Wired - If your looking for wireless, Liftmaster offers a single control wireless button.
781940
These are wired. No batteries. They replace the buttons you now have on a wall for opening the doors individually. They stay lighted for opening or closing in the dark.
1569567
It is not battery operated. It can be powered by the included power adapter or via PoE (Power over Ethernet), if you have a PoE capable switch. I am using mine with PoE since I have it mounted outside the house and Ethernet is more stable, secure and provides a faster connection to the network. Besides, using PoE requires only one cable be run to the outside (no separate power cable required.)
2022680
They dont, that is why you can screw the buttons so you place a wire through the hole that is across the screw, in the metal part, not in the top but in the side, then you just wire the lines you need to be powered
262536
These are wired. Pretty sure you can get the Astro equivalent of the A40 wireless though. Just costs a bit more.
857069
They can run on 6 C batteries (i believe) or AC cord (included for both). So yes, they are truely wireless.
512536
They are battery operated. No wires. I used two per closet. I installed them a few months ago and still bright as the first day.
1373173
These are not battery operated. They plug into standard household 110volt AC outlet.
2021123
No, you do not need a controller to use them. Just connect the +\- wires and they come right on.
1376999
The control is a single toggle switch. You wire it directly to the battery with an inline fuse. It does have two small led lights that operate via a red button, but I really haven't used them yet.
140534
The ones in our house are hard wired but it needs a battery back up in case the electricity goes out - so I guess I can't honestly answer that question!!! Sorry.
1927047
These are momentary push buttons. The connection is only active while you are holding down the button.
2081599
The controls run on batteries. The resistance adjustment is mechanical, not electrical.
2000616
We do not have a wired controller so I don't know. Sorry I wasn't more help.
634043
No, they are strictly electric. Furthermore, I found them to be undependable, even in short range between adjacent rooms -- sometimes worked, sometimes didn't.
392629
No. They are replacement buttons that are built into the steering wheel. They plug into the steering wheel wiring harness.
213120
Not battery operated. It has a small piece of metal inside that flexes whwwhen the button is pressed making the 'click'. Havent had mine too long but have had no problems with it yet
516467
They are battery. Would be nice though . . . although a would be thief could simply pull cord and realize there is no power and proceed with plan