IP security camera Reolink P840 PoE Bullet 8 MP 3840×2160, PoE, MicroSD up to 256 GB, IP66, night vision 60 m

Reolink P840 is a 4K PTZ security camera that delivers full 360° horizontal coverage and 90° tilt to monitor large areas such as yards, driveways, and street corners. It supports 4K UHD resolution and 5x optical zoom with 3D drag-to-zoom control, multiple night-vision modes (color with spotlights or black-and-white with IR LEDs), and Power over Ethernet (PoE) for simplified installation. Local storage is available via microSD (up to 256 GB) or a Reolink NVR, with optional FTP backup.

Advantages

The camera provides complete area coverage with fast 360° pan and auto-tracking to reduce blind spots. High-resolution 4K imaging combined with 5x optical zoom enables clear identification of distant details. Dual night-vision options allow either color recording using spotlights or traditional IR black-and-white mode for longer-range visibility. PoE reduces cabling complexity by carrying power and data over a single Ethernet cable. Multiple storage options (microSD, NVR, FTP) give flexible, local control over recorded footage.

Key specifications

• Coverage: 360° pan, 90° tilt with auto-tracking
• Image sensor: CMOS 1/2.8" (8 MP)
• Resolution: 3840 x 2160 (4K UHD)
• Optical zoom: 5x (3D drag-to-zoom)
• Night vision: color (spotlights) and IR black-and-white, range up to 60 m
• Detection: person / vehicle / animal
• Network: Wired Ethernet LAN, Power over Ethernet (PoE)
• Storage: microSD up to 256 GB, Reolink NVR, FTP support
• Mount type: bullet / ceiling
• Weatherproof rating: IP66
• Color: White
• Weight: 2.34 kg

How to use

Mount the camera on a suitable surface as a bullet or ceiling installation and connect it to your network using a single PoE Ethernet cable to provide power and data. Use the Reolink app or client software to configure orientation, enable auto-tracking, choose night-vision mode, and control 5x optical zoom with drag-to-zoom gestures. Set recording and detection preferences, and choose local storage (microSD) or connect to a Reolink NVR or FTP server for backups.

Recommendations

For optimal coverage, position the camera centrally to the area you want to monitor so the 360° pan can minimize blind spots. Use PoE-compatible switches or injectors for reliable power delivery. If extended retention is required, combine NVR storage with scheduled FTP backups and use a high-endurance microSD card when recording locally.