I am trying to extend good WiFi coverage to my backyard to that I can put a video camera up over my pool. I have an RE500 at the closest corner of my house which helped some, so I want to put a additional one in my garage to carry it the rest of the way. Are there any things I need to worry about with that?  The garage is heated in the winter and never gets over 90 in the summer, but I do do occasional woodowrking out there.  Is dust going to be an issue? Besides blowing it off occasionally, is there anyting else I should to protect the extender?

I have a AX11000 router and an RE500 range extender in the house and planned on getting another RE500 for the garage. 

Thanks.