Portal photocells are a security device used to control automatic doors. They consist of a transmitter and a receiver. The covers containing the transmitter and receiver are IP44 waterproof. Specifics: When the beam breaks, the photocells are triggered automatically. Detection method: infrared, sensor range: 10m in open field, input voltage: AC/DG 12-24V, contact current: TX 30mA max - RX 25mA max Product advantages: The photocells offer effective safety to your insallation, the photocells have a detection range of up to 10 meters in the open field Compatibility: the photocells are suitable for all SCS Sentinel gate engines except motorisations with CTR48/CTR49 electronic card GUARANTEE AND SATISFACTION GUARANTEE: We guarantee the reliability of our innovative technical products that are easy to install and use that combine comfort and safety. Our technical assistance based in France is at your disposal to assist you in the installation of your product. Our technicians will provide you with an informed and personalized advice. Your satisfaction is our priority!