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   Key Switch Control EEMAC 4 Momentary-contact, spring-return key-switch open/close with stop push button in tamper-proof waterproof enclosure. Key removable at centre only. Can open, close, stop door/gate/barrier. Recommended application: any area where high security is required. Part No. 22250 Momentary contact, surface-mounted three button station with "off/on" key switch. Buttons will open, close, stop door/gate/barrier. Key switch will render push-buttons inactive in the "off" position. Key removable in both positions. Part No. 22405 Momentary contact, surface-mounted three button station. Tamper-proof waterproof with "off/on" key switch. Buttons will open, close, stop door/gate/barrier. Key switch will render push-buttons inactive in the "off" position. Key removable in both positions. Recommended application: any area where high security is required. Part No. 22252