The ETI® GF Pro is an automatic snow and ice melting controller for pavement, sidewalks, loading docks, roofs, gutters and downspouts in commercial and residential environments. The GF Pro interfaces with up to two sensors (any combination of GIT-1, CIT-1 or SIT-6E sensors) to meet site requirements. The controller features automatic and manual-override operator controls. The adjustable Hold-On timer continues heater operation up to 8 hours after the sensors stop detecting snow or ice to ensure the rest of the slab has completely dried. The Heater Cycle control button allows manual initiation or cancellation of a heating cycle. The optional RCU-4 remote control unit can be located for convenient monitoring and control. These flexible control options provide complete snow melting and water evaporation at a low operating cost. The GF Pro also features a built-in 30 mA, self-testing Ground-Fault Equipment Protection (GFEP) capability, digitally filtered to minimize false tripping. A ground-fault alarm must be manually reset using the Test/Reset switch before heater operation can continue. The GF Pro is housed in an environmentally sheltered Type 4X enclosure and weighs only 3 pounds. The GF Pro is a snow and ice controller for medium-sized applications whose features and power requirements do not require an APS or EUR Series control panel.