Look to Tri-Tronics and GCF, Inc. for the latest in Photoelectric Sensors, Fiber Optic Cables and Elevator Controls. For more information on the LeadingEdge Elevator Door Control System or the complete line of Tri-Tronics products, call us anytime at (201) 767-6100, or send us an e-mail at info@gcf-inc.com.
