I have one pair of functioning door sensors at kid level that work fine.
I want to add another pair of sensors higher up (height of my truck bumper) so that the garage won’t close if my car is sticking out. Of course I want to have two so that the kid level ones are working.
Would it work to add a second pair and if so, how? Just connect the two sensors on the left to each other in series and the two on the right in series?