The Reolink P840 is a high-performance 4K PTZ PoE IP security camera designed for robust outdoor monitoring in homes or businesses.

Featuring 8MP UHD resolution and a 1/2.8" CMOS sensor, it delivers sharp, detailed footage with 5x optical zoom and advanced 3D zoom for flexible viewing from wide angles to close-ups.

Its 360° continuous pan and 90° tilt provide full coverage in just seconds, enhanced by auto-tracking to follow detected subjects like people, vehicles, or pets, minimizing false alarms with AI smart detection.

Color night vision via spotlights and infrared up to 60m ensures clear imaging in low light, while two-way audio, motion-triggered siren, and spotlights offer real-time communication and deterrence.

Power over Ethernet simplifies installation with a single cable, and customizable patrol routes up to 16 positions allow targeted monitoring. Supporting 24/7 recording, motion/scheduled modes, and storage on microSD up to 256GB, Reolink NVR, or FTP, it integrates with the Reolink app for remote access—ideal for subscription-free security with IP66 weatherproof durability.