Posting this in the plumbing section is a hint.
Is that a sensor to switch on some type of heating element for water pipes?
Close paul but I think it is reading the out side temperature so the heating system can see it needs to produce more heat for the building .
Be interesting to see what others say and what it realy is for .
Roy Cooke
Roy and Paul
I specifically posted in the plumbing section…it is a sensor, but for what?
It is a rain sensor for a lawn irrigation system.
Blaine
Right on!!!
I didn’t know you guys needed to water the snow up there Mario! 
That was my guess as well…just too slow on the draw:) Blaine, you southern chaps are too funny…I even had someone a while ago, just amazed we even knew what an A/C unit was up here:):)
Last night chinook winds 12 degrees C. Only shoveled once so far this season.
Blaine
Have not seen snow as of today! Actually it’s raining today.
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It’s raining here today too. The rain sensor on my lawn sprinkler system has the system shut down:D Chilly here too, only 74 here for a high, and going down to 55 tonight. I need to find my long johns!:shock:
You guys have A/C units??? Just to keep the Molson cold, right?
Blaine
Go ahead rub it in. I can’t remember the last time we had 74 degrees.:mrgreen:
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Blaine,
you are so wrong, it’s a snow sensor wired to an alarm to let you know to get up at 5 am and break out the snow blower:mrgreen:
Regards
Gerry
ROTFLMAO
Sorry Gerry, I forgot what it was like to live up north. Perhaps that was on purpose…
snowblower- that’s a dirty word around here…unless your “Frosty the snowman”;)
Those sensors have been required down here since 1991 or 1992
??? :margarit:
Got to 78 here today, and we’re expecting 52 tonight.
Gerry, I had a snow removal business at 8200 ft. in the Rockies for 12 years. I was wishing hard for a sensor like that. I had to wake up every few hours to check snow depth.