Home Alarm Without Subscription 2026: Ajax, Somfy, Ring and eufy Compared

For most homes, the best home alarm without a subscription in 2026 is the Ajax StarterKit 4G: its hub runs on Ethernet and 4G, lasts up to 16 hours on battery and is Grade 2 certified. If you want a system that detects break-in attempts before a door or window opens, the Somfy Home Alarm Advanced is the most complete alternative, while Ring Alarm remains the simplest entry-level choice for Alexa households.

This comparison is based on manufacturer specifications, independent reviews and verified buyer feedback. It only includes systems sold in Europe in 2026. You will find the full selection on our home alarm systems page, and a broader overview in our 2026 guide to connected home security.

Self-monitoring or professional monitoring: what "no subscription" means

A subscription-free alarm works on self-monitoring: when a sensor is triggered, the siren sounds and you get a notification on your smartphone. It is up to you to check what is happening, alert a neighbour or call the police. There is no monitoring centre and no contract.

Professional monitoring adds an operator who verifies alarms around the clock and can send a guard. That is useful if you are often unreachable, travel for long periods or if your insurer requires it. For a main residence that is lived in regularly, self-monitoring covers the essentials: the siren deters, and the alert reaches you within seconds.

Be careful, though: "no subscription" does not always mean "no costs at all". Cellular backup, video history or some advanced services can be paid extras depending on the brand. We point this out for each model.

How to choose

• Backup network: if a burglar cuts your internet router, the alarm must still be able to send alerts over the mobile network. This is the most important criterion.
• Hub battery: during a power cut, the hub should stay active for several hours.
• Radio protocol: a long-range proprietary protocol (Ajax Jeweller, Somfy) is more robust than Wi-Fi sensors. Ring's Z-Wave is reliable in a typical home, with a range extender if needed.
• Perimeter detection: opening and vibration sensors on doors and windows let you arm the alarm at night while still moving around freely.
• Pets: if you have a dog or a cat, choose pet-immune motion detectors or rely on door and window protection.
• Siren: an indoor siren of at least 100 dB is the minimum. An outdoor siren adds a stronger deterrent.
• Ecosystem: compatibility with your cameras, voice assistant or smart home hub.

The 4 best subscription-free alarms in 2026

Ajax StarterKit 4G: the most robust

The kit includes the Hub 2 (4G) control panel, a MotionProtect motion detector, a DoorProtect opening detector and a SpaceControl key fob. The detectors use the Jeweller radio protocol, with a stated range of up to 2,000 m in open space. That is very comfortable for a house with a garage, garden shed or outbuilding.

Strengths: the hub connects via Ethernet and takes two SIM cards, giving it genuine backup connectivity; its battery lasts up to 16 hours; and the system is Grade 2 certified under the European EN 50131 standard. MotionProtect is pet-immune up to 20 kg and 50 cm tall, and the detectors run for several years on a battery. The Ajax app is known for being clear, with scenarios, groups and per-user permissions. The system supports up to 100 devices, including detectors with photo verification (the MotionCam range).

Limitations: Hub 2 has no Wi-Fi, so you need an Ethernet cable to your router or a SIM card. You supply the SIM yourself: it is not an Ajax subscription but a mobile plan (a basic data plan is enough). The ecosystem is closed, so only Ajax accessories work with it.

Best for: detached houses, properties with outbuildings and anyone who wants reliability close to a professional installation, without a contract.

Somfy Home Alarm Advanced: detection before the break-in

The kit includes the Link Advanced hub, a 110 dB indoor siren, three IntelliTAG sensors, a motion detector, a keypad and two badges. What sets it apart are the IntelliTAG sensors: fitted on doors and windows, they detect the vibrations of a forced entry attempt before the opening even moves, so the siren goes off earlier.

Strengths: during a power cut, the Link Advanced switches to the GSM network, which is included for the first five years in the European Union. Somfy states 12 hours on the built-in battery, then up to 14 days on disposable batteries. IntelliTAG sensors are rated IP54 and can also protect a gate or shed. The badges disarm the alarm automatically when you arrive. The system works with Google Assistant, Alexa and the Somfy TaHoma hub, as well as Somfy cameras.

Limitations: after five years, the GSM backup becomes a paid option. The hub runs on Wi-Fi, and the ecosystem is Somfy-only.

Best for: homes with many doors and windows, and pet owners who can arm perimeter protection with IntelliTAG without leaving a motion detector active in living areas.

Ring Alarm Pack M (2nd Gen): the entry-level pick for Alexa

The M pack includes a base station, a keypad, contact sensors, motion detectors and a range extender. The sensors use Z-Wave, and the base station connects over Wi-Fi or Ethernet.

Strengths: the base station has a built-in 104 dB siren and a battery rated for 24 hours. Without a subscription you still get notifications, arming and disarming in the Ring app. The motion detectors offer several sensitivity levels, including a low setting designed for pets up to around 23 kg. Integration with Alexa and Ring cameras and doorbells is the smoothest in this comparison.

Limitations: cellular backup is only available with a Ring Protect subscription. Without it, an internet outage stops alerts from being sent, even though the local siren still works. Google Home and Apple Home integration is limited.

Best for: flats and small houses, and households already using Ring products or Echo speakers.

eufy HomeBase S380: for existing eufy camera owners

The HomeBase S380 (also called HomeBase 3) is not a complete alarm kit but the hub of the eufy ecosystem. It manages up to 16 eufy cameras plus the brand's entry sensors, motion sensors and keypad, sold separately. It has a built-in 100 dB siren and Home and Away modes.

Strengths: storage is local, with 16 GB built in and a bay for a 2.5-inch drive of up to 16 TB. No cloud is needed to keep your footage, and facial recognition runs locally across all connected cameras.

Limitations: no cellular backup and no alarm certification. The HomeBase connects via Ethernet. It is therefore better suited as an add-on to a video system than as the main alarm for an isolated house.

Best for: households already using eufy cameras that want to add a simple alarm layer with no monthly fees.

Comparison table

Mistakes to avoid

• Ignoring the backup network: an alarm that relies only on your router loses its notifications if the line is cut.
• Putting the hub in plain sight: install it out of view from the entrance so an intruder cannot unplug it in seconds.
• Pointing a detector at a window or radiator: changes in heat and light are the leading cause of false alarms with infrared detectors.
• Skipping the trial period: spend a few days in test mode to fine-tune sensitivity, especially with pets.
• Sharing a single code: create one access per person, so you can see who disarmed the system and revoke access without reconfiguring everything.

Installation and good practice

All four systems install without electrical wiring: the hub plugs into a socket, and sensors attach with double-sided adhesive or screws. Start by protecting the front door and the accessible ground-floor windows, then add a motion detector in the main hallway. An outdoor siren visible from the street strengthens the deterrent.

Let your insurer know: some policies require a specific level of protection or offer a discount for an alarm, so it is worth checking whether a self-monitored system is accepted. If you add cameras, point them only at your own property, without filming the street or your neighbours' gardens. To secure access to your home, see our smart lock guide, and to refine detection, our smart motion sensor comparison.

Our verdict

The Ajax StarterKit 4G is our top pick: Ethernet and 4G hub, battery backup of up to 16 hours, very long radio range and Grade 2 certification. It is the subscription-free system closest to a professional installation, as long as you add a SIM card.

The Somfy Home Alarm Advanced is the best option for catching a break-in attempt from the first vibrations, with GSM backup included for five years. The Ring Alarm Pack M is the simplest entry-level choice for a flat or an Alexa household, bearing in mind that cellular backup requires a subscription. Finally, the eufy HomeBase S380 makes sense if you already own eufy cameras and want to add a supporting alarm with local storage.