Reolink RLC-840A 4K PoE Security Camera
Overview
The Reolink RLC-840A 4K PoE Security Camera is a wired turret-style outdoor camera aimed at homeowners and small business owners who want reliable, high-resolution surveillance without a monthly subscription. Launched in early 2024, it has quickly earned a 4.5-star average and cracked the top 200 in its category — a strong early showing. The all-metal housing feels noticeably more solid than the plastic-bodied cameras common at this price tier, and the IK10 vandal-proof rating gives it real credibility for exposed installations. Before purchasing, be aware: this wired security camera requires a PoE switch or injector to function. No DC adapter is in the box, and that detail trips up buyers who aren't already running a PoE setup.
Features & Benefits
The resolution jump from a typical 2MP camera to this PoE turret camera's 8MP 4K sensor is significant in practice — license plates, faces, and fine details that would blur out at lower resolutions stay legible. The 125° wide-angle view covers a full driveway or storefront entrance without needing motorized pan or tilt, keeping the design clean and the mount stable. Night footage stands out clearly: the 3000K warm spotlights produce natural-looking color night vision instead of the flat, washed-out look of traditional infrared. AI detection filters out trees and shadows, flagging only humans, vehicles, and animals. Add two-way audio and support for up to 512GB of local storage, and this is a capable, self-contained system.
Best For
This wired security camera is a strong fit for homeowners who want a permanent outdoor installation with sharp footage day and night — no cloud subscription, no recurring cost. It also slots naturally into existing PoE NVR setups, where it serves as a high-resolution node alongside other cameras. The IK10 rating makes it worth considering for garages, commercial entryways, or any spot where tampering is a genuine concern. RTSP and ONVIF support opens it to third-party software like Blue Iris or Synology Surveillance Station. That said, renters or anyone needing a wireless setup should look elsewhere, and the fixed lens means you commit to one viewing angle at install time — no remote adjustments possible.
User Feedback
Across a wide pool of buyer reviews, image quality and color night vision draw consistent praise — people are genuinely impressed by how usable footage is after dark. Installation feedback is largely positive too, with buyers noting the single-cable PoE setup is cleaner than running separate power lines. The most common frustration isn't with the RLC-840A itself but with what's missing from the box: no DC adapter means buyers without a PoE switch are stopped before they start. A smaller group mention that repositioning the view requires physically remounting the camera, and a few wish the digital zoom held up better at distance. Overall, criticism centers on setup expectations, not on camera performance.
Pros
- True 4K resolution captures license plates and faces with a level of clarity that 1080p cameras simply cannot match.
- Color night vision via warm spotlights produces natural, usable footage after dark rather than flat black-and-white images.
- AI detection reliably separates humans, vehicles, and animals from background motion, keeping alert fatigue low.
- The all-metal IK10-rated housing holds up to physical abuse and harsh weather better than most consumer cameras.
- A single Ethernet cable handles both power and data, keeping installation clean and cable runs minimal.
- No subscription is required — footage stays on your own microSD card or NVR, fully under your control.
- RTSP and ONVIF support makes this PoE turret camera compatible with Blue Iris, Synology, and other third-party NVR platforms.
- Two-way audio lets you respond to visitors or deter intruders directly from your phone.
- The 125° wide-angle view covers large zones without requiring motorized movement or multiple cameras.
- At its price point, the combination of 4K resolution, AI detection, and vandal-proof build is genuinely hard to beat.
Cons
- No DC adapter is included, so buyers without an existing PoE switch face an unexpected additional purchase before the camera will even power on.
- There is no remote pan or tilt control — if the viewing angle is wrong, you have to physically remount the camera.
- Digital zoom degrades noticeably at higher magnification levels, making distant detail harder to read than the 4K sensor would suggest.
- The IR spotlights cover roughly 30 meters, which is adequate but not exceptional for large open properties or long driveways.
- Setting up the RLC-840A without any prior networking knowledge can be frustrating, particularly when configuring RTSP or third-party NVR integration.
- A microSD card is not included in the box, meaning local storage requires an additional purchase on top of the camera itself.
- The fixed lens means there is no flexibility to adjust the field of view without swapping hardware.
- No built-in Wi-Fi makes cable routing a hard requirement, which is a real obstacle in older homes or outbuildings.
Ratings
The scores below for the Reolink RLC-840A 4K PoE Security Camera were generated by our AI system after analyzing thousands of verified global buyer reviews, with bot-submitted, incentivized, and spam feedback actively filtered out. Both the genuine strengths and recurring pain points of this wired camera are reflected transparently — the numbers are shaped by real-world owner experience, not manufacturer claims.
Image Quality
Night Vision
AI Detection
Build Quality
Value for Money
Installation & Setup
Storage & Recording
Two-Way Audio
App Experience
Field of View
Zoom Capability
Weather Resistance
Third-Party Integration
Suitable for:
The Reolink RLC-840A 4K PoE Security Camera is built for homeowners and small business owners who want a permanent, high-resolution outdoor installation they can set up once and largely forget about. If you already have a PoE switch or NVR in place, this camera drops into that ecosystem cleanly, adding an 8MP node without any subscription cost or cloud dependency. It's particularly well suited to covering wide, fixed zones — a driveway, a garage entrance, a storefront — where the 125° field of view does the work that pan/tilt would otherwise handle. The IK10 vandal-proof metal housing makes it a sensible pick for exposed or semi-public locations where a plastic-bodied camera would be an easy target. Privacy-conscious buyers who want footage stored locally on a microSD card or NVR, rather than uploaded to someone else's server, will find this wired security camera fits that requirement without compromise.
Not suitable for:
The Reolink RLC-840A 4K PoE Security Camera is a poor match for anyone who needs a quick, tool-free installation — renters, frequent movers, or buyers who want a camera live within minutes of opening the box should look at a wireless option instead. The requirement for a PoE switch or injector is non-negotiable; without one already on hand, the out-of-box experience stops cold, and that additional purchase adds to the real cost. Anyone expecting to pan, tilt, or zoom the camera remotely will be disappointed — the fixed lens and static mount are deliberate design choices, but they mean you commit to a single viewing angle at install time. The 10x digital zoom also loses quality quickly, so if identifying details at significant distance is a priority, a camera with optical zoom would serve better. Finally, buyers looking for a fully wireless or battery-powered solution for a shed, a rental unit, or any location without a nearby Ethernet run should rule this one out entirely.
Specifications
- Resolution: The sensor captures 8MP footage at 3840x2160 pixels and 25 frames per second, encoded in H.265 for efficient storage.
- Lens: A 2.8mm f/2.0 fixed lens delivers a 105° horizontal, 56° vertical, and 125° diagonal field of view.
- Night Vision: Two 3000K warm LED spotlights enable full-color night vision, supplemented by 850nm infrared LEDs with an effective range of approximately 30 meters.
- AI Detection: On-camera AI classifies motion events into three categories — human, vehicle, and animal — to reduce irrelevant alerts from environmental triggers.
- Housing: The camera body is all-metal construction rated IK10 for vandal resistance and IP67 for dust and water ingress protection.
- Power Input: The camera accepts power via PoE (IEEE 802.3af) over the Ethernet cable or via a DC 12V/1A adapter; no DC adapter is included in the box.
- Storage: A built-in microSD card slot supports cards up to 512GB (not included), with additional support for continuous recording via a compatible Reolink NVR.
- Connectivity: A single 10M/100Mbps RJ45 Ethernet port handles both power delivery and data transmission; no Wi-Fi is built in.
- Protocols: The camera supports RTSP and ONVIF, enabling integration with most third-party NVR platforms and compatible surveillance software.
- Two-Way Audio: A built-in microphone and speaker allow real-time two-way communication through the Reolink mobile or desktop app.
- Digital Zoom: Up to 10x digital zoom is available, though image quality degrades at higher magnification levels as no optical zoom is present.
- Pan and Tilt: There is no remote pan or tilt functionality; a swivel bracket inside the housing allows manual angle adjustment at the mount only.
- Dimensions: The camera measures 4.61 x 4.61 x 3.39 inches and weighs 1 pound, making it compact enough for ceiling or wall mounting.
- Temperature Range: The camera operates reliably between -10°C and +55°C (14°F to 131°F), suitable for most outdoor climates.
- App Compatibility: The Reolink app and client software support Windows, macOS, iOS, and Android, with browser access via Edge, Chrome, Firefox, and Safari.
- In the Box: Package includes the camera unit, a waterproof lid, a 1-meter Ethernet cable, a security sign, a screw pack, a mounting template, and a quick start guide.
Related Reviews
Reolink RLC-833A 4K PoE Security Camera
Reolink RLC-81PA PoE Bullet Security Camera
Reolink RLC-811A 4K PoE Security Camera
Reolink CX820 4K PoE Security Camera
Reolink RLC-810WA 4K Outdoor Security Camera
Reolink RLC-820A 4K PoE Dome Security Camera
Reolink RLC-823S2 PTZ Security Camera
Reolink RLC-1240A 12MP Vandalproof PoE Security Camera
Reolink RLC-823S1W PTZ Security Camera