What is this?

[Nicaho]

Some type of Sensor? I was messing with it to see why the previous owner had it zip tied there and it had a cap on it at the top and it dropped and I couldnt find it. So just want to find out what it is exactly and how important the cap to it was!!

 

[LeesEvoX]

Pics dont work for me..

 

[Daniel Andrews]

Pics don't work for me either.

 

[Quyonmob]

 

[Daniel Andrews]

Pic is worthless, try again.

 

[Daw14]

One and done .