The feeling of insecurity at home is nothing new, but it has become more present.
Reports of break-ins, theft, and vandalism have increased, and home surveillance technology has evolved to the point where anyone can set up an effective system without building work, without visible cables, and without monthly fees. The problem is that the choice is so wide it is easy to get lost.
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Over the past few years we have tested and reviewed dozens of security cameras, and the brand we have worked with most and recommend with the greatest confidence is Reolink.
The ecosystem is coherent, the app works well, image quality is consistent, and there are no mandatory subscriptions to store recordings. This guide is built on that real-world experience.
A practical guide to building a complete home surveillance system
Before choosing any camera or thinking about where to place it, there is a step many people skip — one that can create serious problems later.
Home security cameras are subject to legal rules in Portugal, and not knowing them is not a valid excuse when a neighbour complains or a notice arrives from the CNPD.
It is worth understanding what you can and cannot do before you start installing.
Before installing: what Portuguese law says about cameras at home
Having security cameras at home is legal, but there are rules you need to know before installing them — particularly when it comes to outdoor cameras.
The fundamental rule is simple. Cameras may only capture images within your own property.
Garden, private driveway, garage, inside the house — all of this is within the permitted limits. What cannot happen is a camera pointing at the street, the pavement, a neighbour’s window, or any space that is not exclusively yours.
Even if a small residual angle of public space is unavoidable, that framing must be minimal and clearly unintentional.
Cameras with automatic rotation deserve special attention. Automatic motion tracking can easily cause a camera to follow people passing on the street — which is illegal even if unintentional.
On these cameras, it is important to configure detection zones that limit the camera’s field of operation to your property’s perimeter.
There are other rules to bear in mind. Recordings may only be kept for 30 days — after that, they must be deleted. Audio capture is, as a rule, prohibited outdoors. And in residential blocks, installing cameras in shared areas requires unanimous agreement from all residents.
The good news is that since 2018, with GDPR, prior authorisation from the CNPD is no longer required for residential use. But that does not mean the rules no longer exist, and a neighbour’s complaint can have serious consequences. Install with common sense, point the camera at what is yours, and the system will do its job without causing problems.
Start at the door: the video doorbell
The first checkpoint of any home is the main entrance.
The Reolink Battery Video Doorbell (2nd Gen) is a wireless video doorbell with a 2K 4MP camera and a 180-degree diagonal field of view — enough to capture the entire entrance area, from the ground to a face, in a single 1:1 frame.
Battery life reaches 300 days per charge, it supports dual-band 2.4/5GHz Wi-Fi, and features AI detection for people, vehicles, animals, and parcels.
If wired to the existing doorbell’s AC circuit, continuous 24/7 recording and pre-recording become available. No subscriptions, no mandatory building work.
Indoor cameras: each room has its solution
For monitoring the inside of the home, there are two possible approaches. For anyone wanting a fixed battery camera for garages, storage rooms, or covered outbuildings, the Argus Eco Ultra is the most straightforward option — compact, wireless, and with AI detection.
For those looking for more versatility, the Argus MagiCam adds the ability to mount anywhere using a magnet, stand, or bracket.
For those wanting automatic motion tracking — ideal for living rooms, offices, or indoor entrances where a socket is always available — the E1 Pro is the wired model in the line. Always powered, always recording, no battery concerns.
Outdoor cameras: the main line of defence
The exterior is where the system carries the most weight, and Reolink has one of the most complete outdoor lines on the market.
The Argus 3 Ultra and the Argus 4 Pro are battery-powered 4K cameras with an optional solar panel and AI detection. They are the right choice for anyone who wants to install a camera at any point outdoors without running cables.
The Solar Floodlight Cam adds an integrated floodlight that activates automatically on motion detection, making it useful both for security lighting and active deterrence.
For 360-degree coverage, the Reolink Altas PT Ultra is the motorised rotating model in the range — with full pan-and-tilt, automatic tracking, and panoramic coverage that can easily replace two or three fixed camera positions.
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For those who prefer a dual-sensor system in a single body, the Reolink TrackMix covers both the wide angle and zoom detail simultaneously, while the Argus Track offers automatic tracking in a more compact battery-powered format.
4G cameras: for locations without Wi-Fi
A country property, farmland, an isolated garage, or a warehouse outside the home network’s reach — there are situations where Wi-Fi is simply not available and running cables is not feasible. This is where Reolink’s 4G cameras come in.
The Altas Go PT is the motorised option with full rotation and 360-degree coverage via 4G. The Reolink Go Ranger PT is more compact and equally self-sufficient — battery and solar powered, with no dependence on any local infrastructure. Both work with a data SIM card and are ideal for remote or hard-to-access locations.
The hub that keeps everything stored at home, not in the cloud
A camera system without centralised storage is incomplete. Reolink addresses this with two local storage hubs that centralise recordings from all cameras into a single unit that stays inside the home — no external servers, no subscriptions.
The Reolink Home Hub is the more accessible option, ideal for medium-sized systems. The Reolink Home Hub Pro steps up in storage capacity and the number of supported cameras, making it the right choice for larger systems or those planning to expand in the future.
Both also function as a doorbell base, playing the Battery Video Doorbell’s chime in the room where the hub is installed.
How to put the system together for your home
There is no single configuration — the system grows with each home’s needs.
For those just starting out, the most balanced combination is a video doorbell at the entrance, a battery-powered outdoor camera covering the main access point, and a Home Hub to centralise recordings. From there, cameras can be added as needed for each area to be covered.
For larger homes or those with wide outdoor areas, the Altas PT Ultra replaces several fixed camera positions. For rural properties or remote land, 4G cameras are the only viable solution.
And for anyone who wants maximum coverage without building work, the entire Reolink battery line installs in under an hour, with a solar panel providing indefinite autonomy on compatible models.
The result is a complete surveillance system — no subscriptions, all recordings stored at home — from a brand we have tested enough to recommend without reservation.
