You want to install the Weepmizer probe on the North side of the building at least 6" from the building in the shade. I make a bracket out of aluminum, paint it black and mount it on the building, it's been working fine like that for well over 20 years. Another thought, where is your weep solenoid located in your system? We install a 1/2" shut off Ball valve coming off the main water line and then a 1/2" ASCO 8210G34 solenoid valve just after the backflow preventer, before any other services. Just after the ASCO solenoid valve I installed a "T" with a valve on the down leg so I can blow the weep system down with air and pump windshield washer fluid into the weep system when I shut the car wash down when it gets real cold.We are currently running a Super Wash programmed weep system and is integrated into the auto computer. We will most likely go to a Weepmizer when the computer comes out for our new auto. What is a practical way to install the sensor if it needs to be in shade and so far from the building?