The Easy Heat Roof Sentry RS2 Control is a white plastic device designed to control ADKS de-icing cables, providing a convenient and efficient solution for preventing ice build-up on roofs. This model, RS-2, is specifically designed to work with de-icing cables and comes as a single unit in the pack. With its easy-to-use design and durable materials, the Roof Sentry RS2 Control is an essential accessory for home improvement projects focused on maintaining the safety and functionality of gutters and downspouts.