I just put the indoor appliance modules in plastic baggies with the plug sticking through. Also the outdoor plugs have a lid to help shield them. Use them for controlling my landscape lighting and xmas lights. Worked great for about 3 years so far and all controlled from a PC. Of course, it helps that the weather here in AZ is not too extreme except for the summer heat (really does a number on those baggies .
Probably not the answer your are looking for, but...
I built a small enclosure out of 3/4" pine, about 14" high by 8" wide , 5" deep, with a hinged door that has a weather seal. For the roof I used a roof shingle and I painted the outside of the enclosure. It took about 2 hours for the project and it houses 8 X-10 outlets. The bottom half of the outlets are not X10 controlled, and that is where the universal modules are plugged in.
So with Main Lobby 2.0 in the works, you should have that spare 2 hours, don't you?
I have also done the plastic bag trick for many years now (10+). I also do a doulble pail trick as well. I flip a small pail unside down and place the X-10 modules in a plastic bag on top with a extension cord going out to the lights. I then place a larger pail (5 gal) over the smaller pail. then I place a rock on top of it to hold it down. this just keeps the modules off the ground and out of the snow. I live in Michigan.
Call it luck but I've also been doing the same thing as jgathe for about 2 yrs. My weather in Northern Virginia much milder than say Chicago. I have a brick construction at the front of the house and a deck at the rear so maybe they offer some protection. However, it's the rain rather that colder weather I would be most cautious about because it can fry the device. Plastic baggies seems like a very good idea though.
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