SD-7900 Surface Sensor

Provides automatic, efficient, economical operation of all types of snow melting equipment
-Activates railway snow melters to keep switches open in severe storm conditions
-Three types: pole, ground mounted, surface mounted
-Provides local control at remote points; eliminates need for supervision by dispatchers and CTC modifications
-Compact, easily installed, maintenance-free
-Foolproof. Operates only in snow, sleet, hail or icenot during normal rainfall
-Controls all types of heating equipment