Have had previous incidents that my Liftmaster key pad attatched to my Toyota car key pad in my pocket has unknowingly opened my garage door, sometimes overnight. Now I know from upstais in my office just by seeing a little green light that the garage door is closed.
But if there is a red light I just push the button on the monitor to close the door.
Great Product!
Part arrived within a week with USPS tracking and it fit perfectly to replace the old broken part. I don't have to open my garage by hand no more. Good stuff, I'm planning to buy another coupler as back up.