Global Commander Roof and Gutter Sentry for Automatic De-Icong Control with Humidity Probe, Model RCR-U*

Global Commander's roof heating cable control is intended to be used with their roof and gutter de-icing cable. It only energizes your roof and gutter de-icing cable when necessary by sensing temperature and moisture. it prevents excess electrical waste while helping to protect your roof from ice dams.

When the weather is warm, the meltwater will continue to drain to the ground, so there is no reason for the roof heating cable to be energized. Also, when the ambient temperature is cold enough that the heat dissipated from the roof does not melt snow, there is no need for the roof heating cable to be energized. De-icing cables only need to operate when there is a possibility of meltwater refreezing and causing ice dams.