Single beam infrared radiation: suitable for anti-theft such as doors and windows, box, fence and so on. Small size, big effectSealed shell, stronger waterproof: Thanks to the good waterproof design, it can effectively cope with all kinds of bad weather, so that the internal components are not eroded by rainDetection distance 20m: Install to ensure that the emitter and the receiver are on the same horizontal lineStable and reliable anti-interference: using hemispherical optical lens, the beam is concentrated, precise and non-scattering, and the automatic strong light adjustment system can effectively avoid the interference of strong light and car headlightsSpecificationsLight source mode: infrared pulse typeDetection method: Beam interruption pick-up typePackage Include:1 Pair X Alarm SensorNote:Due to different personal measurement methods, there will be an error of 2-4 cm, please understandThanks for your supportOur products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it