Residential Electric Door and Gate Operators Commercial-Industrial Trolley type-ceilling, Wall Mounts, B1-Parting, Sliding Doors Electric Operators Waterproof Trolley Type-Ceillling and Jack-Shaft-Wall Mount Explosion-proof Trolley Type-Ceillling and Jack-Shaft-Wall Mount Sliding Gate Electric Operators Swing Gate Electric Operators Trafic control barriers To control of vehicular traffic in private and public parking areas. Rolling &Fire Doors Rolling Service Doors & Fire Doors. Jack Shaft - Wall Mount Accessories Different accessories for your needs Safety Devices Reverse Systems and Sensor Entry-Exit Devices Loop Detectors, Card Reader and more Operating Controls   Modifications   Special applications   Dust-Proof, Waterproof EEMAC 12 and 4 Momentary-contact, single-button station can either open or close door/gate/barrier. Part No. 50425 Momentary-contact, two-button station, can open and close door/gate/barrier. Part No. 50430 Momentary-contact, three-button station can open, close, stop door/gate/barrier. Part No. 50435 Momentary contact, three button station OPEN/CLOSE/STOP with RED pilot light "ON" buttons will activate door/gate/barrier. Pilot light available in 24V. A.C. or 115V. A.C. Part No. 50505 Momentary contact, three button station with pilot light and "off/on" key switch. Buttons will open, close, stop door/gate/barrier, key switch will render push buttons inactive in the "off" position. Pilot light "on" available in 24V. A.C. or 115V. A.C. Key removable in both positions. Part No. 50440