Includes digital interface and maximum 2 sensor capability. 120V. Detects both temperature and moisture and the heating system will only be activated only if snow or ice is detected. Wall-mounted metal enclosure. UL listed. CSA Certified for use in Canada and U.S. Warranty: Two years limited. Made in Denmark. 2 in. L x 5 in. W x 5 in. H. Must be purchased with item# SLAB-SS. The SCE-120 provides for economical, automatic operation of snow melting or roof and gutter deicing systems. For use with SCE-AMB-SS and SCE-GTM-SS sensors, this affordable control option is easy to program.