Has anyone ever run across this? I have a client who is insisting on having Touch Panels outside in Phoenix and I am having a hard time finding a solution for protection.

Thanks for any help on this.

I have used various types of these enclosure for touchpanels and keypads.

[Link: mcmaster.com]

FWIW I have seen it here a couple times. Not so much in other climates. If it is under a loggia or some sort of good cover it should last fine, or at least as fine as putting a Tv display outside. Of course it won't last as long as being inside but it will not be substantially less. Sounds like you are in a dry climate like I am and I would worry less then I would if I were in a place like Houston where 90 percent humidity is the norm. Some precautions I would take would be to isolate the power going to it, to surge the heck out of the wires and try to seal the back box as much as possible given whatever the wall is made out of. Also explain and get in writing that this is not the best idea and that panel is prone to die more often just to CYA.

More details...in-wall touchpanel i assume. What model does he/you have in mind? Where is he thinking about mounting it? Covered porch? Tennis court? Why not just use an iPad mini that docks near the exit of the home so he can grab it on his way out.

I would try the Mcmaster link that another poster shared. Even with that, I don't know what longevity is gonna be like in that environment. I always tell people that it is a crapshoot when you start putting stuff meant to be inside, outside. TSWs don't seem like they would fare too well outside in a full sun/full heat area in the desert. They might be fine in a shaded, semi covered area.

Heck, I have one job where I can't get Sunbrite tvs to last more then a year. It is a completely exposed patio near the ocean that gets full sun and every surface is white. It is like an oven out there. Guy refuses to cover the tv when it isn't in use, choosing to just bitch at me that I sold him a crappy tv.

Funny, but here in ol hot and humid Houston, I have TVs and touch-panels outside without any issues.
Humidity keeps em nice and lubed

LOL , yes that's is kinda my point. I just did a poor job of stating it.
As long as some discretion is used when placing equipment outdoors it will be ok, it may not last as long in an apples to apples vs. a same model on the other side of the wall and every attempt to keep equip dry should be made. So maybe even specify another cheaper model than the typical model you would use indoors. Just control the elements and use weather proof covers if at all possible.

Arlington make covers for keypads and depending on the touch panel it may fit as well.
[Link: aifittings.com]