Garage door sensor question

Is it possible to add a second of safety sensors about waist high on a garage door? I dont see why not as its low voltage and i just want to buy the parts and do it myself. Called two companies and they dont sell parts. Almost had a really bad accident pulling in the garage. My wife and son entered the garage then i started backing in and my son hit the garage door opener, closing the door and luckily my wife hit the button to raise the door back up before it crashed into my windshield! So now i want to add a second sensor to prevent that accident from ever happening.

 

They sell the sensors at the big box stores like Lowes and Home Depot. I have been looking at doing the same thing. I have been wondering if wired in series they would work the same.

 

$52 Chamberlain G801CB-P LiftMaster/Craftsman 801CB Garage Door Opener Replacement Safety, Includes 2 Sensors, Mounting Brackets and Hardware, 1 Pack, One Color

https://www.amazon.com/Chamberlain-...+door+sensors&qid=1564161762&s=gateway&sr=8-3

posi-tap and test

 

Can you just relocate them higher? Not 100% sure if that would solve you're issue, but I would think so. About 12-18" higher off the floor.

 

I thought that first too but maybe he has pets, I've also seen my kid lie belly down across the threshold and chalk draw on the garage floor.

 

I thought about that too. Personally...I back in 99% of the time and have my backup camera, but of course there could unfortunately be that 1% time.

 

I would just try it I don’t think the sensors are that expensive and splice into the ran sensor wires already there and test it for workability!! Let us know?? If it doesn’t or it gets out of whack take apart and put back to normal??.

 

Sold and shipped by Amazon, just return if it doesn't work

 

Some quick googling makes me think this won't work. Others have tried wiring a second set of sensors up in series and parallel and neither seem to work. Something about the voltage drop and the type of pulse used in the optics.

 

This was my concern too... I wonder if you could put something like mirrors to do something similar.

 

It is absolutely possible. Get you a set that are the same voltage and set up as the ones you currently have. You'll want to wire them in series so that if the top sensor brakes but the bottom one does not your door will stop and reverse. If you wire them in parallel you would have to break both of them at the same time in order for the door to stop.