The Reolink RLC-830A is a smart 4K PT security camera designed for use with an NVR system. With its auto tracking feature, it can detect and follow motion, ensuring that you never miss a thing. Its PoE capability means that you can power the camera using a single Ethernet cable, making installation hassle-free. The camera's 4K resolution and pan-tilt functionality provide a wide field of view, allowing you to monitor your property with ease. The Reolink RLC-830A is the perfect choice for anyone looking for a reliable and high-quality surveillance camera.