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   WEATHERPROOF INFRARED MODULATED PHOTO SWITCH IRB-4X The model IRB-4X photo switch is used as a safety or open device in conjunction with upward acting doors, sliding, swing gate and parking barriers operators. The IRB-4X works without lenses and it is less sensitive to fog, dust, snow and sunlight, therefore it is recommended for any exterior installation and car wash application. Transmitter and receiver are mounted in line of sight at a distance up to 75 feet maximum. Polysterene housing EEMAC 4X with anodized aluminium hood for greater weather protection. Operating voltage: 24V A.C. only. Part No. 50014