Roof De-Ice Cable Contrl If only one of these conditions exists the control does not energize the cable. Roof Sentry RS2 is a residential grade unit that energizes de icing cable when two conditions are present cold temperatures (on at 3 degree Celsius/38 degree Fahrenheit off at 9 degree Celsius/48 degree Fahrenheit) and the presence of runoff water from the roof in contact with the sensor wire. Roof Sentry RS2 measures both temperature and moisture to turn the system on or off in response to changing weather conditions..
D 125 pk, 125PK Each food tray is printed with faint red barn wood and a bold black Ace Hardware Logo.5 oz Red Paper Food Tray Serve Tray 6 in..BBQ Provisions 4.