Answers from experience

Our company is based in Torrevieja. We install across southeast Spain, within approximately two hours’ travel from this location – from Gandia (northern Costa Blanca) to Vera (Almería). For smaller installations at greater distance, a travel surcharge may apply. In practice we serve customers daily across the Costa Blanca and Costa Cálida – the regions where Dutch and English-speaking expats most commonly live.

As installers we are often on site. New enquiry (purchase or installation)? Send a WhatsApp or use our contact page — we will call you back on the next business day or respond within 24 hours on business days. Already a customer with a support question? Not via WhatsApp: search first at Ask a question; ticket or home visit via Support.

From our 3,000+ installations we know: subscriptions are often a false sense of security. Salespeople almost always stress the same points: low monthly price, “free” installation, a monitoring centre that “calls the police”, anti-jamming and “24/7 protected”. On paper that sounds reassuring; in practice these are often sales arguments. The base package usually detects indoors only, outdoor sirens are missing, and when the radio signal is disrupted nothing happens locally.

On top of that: high costs after the introductory rate, weak jamming protection and monitoring centres that must legally verify before the police can be called. Many salespeople promise a direct police connection, but private systems do not have one.

Our subscription-free AJAX systems offer direct notifications on your smartphone, genuine outdoor detection, reliable jamming detection via the Jeweller protocol, and full ownership — with no ongoing obligations. More on monitoring centre claims: monitoring centre myths.

Customers choose us for reliable prevention with outdoor detection, jamming detection via the Jeweller protocol, and direct app notifications – without monthly costs or contracts. As an accredited Ajax Systems Partner we install the first fully wireless alarm system certified to EN 50131 Grade 3 – one of the highest European security grades. After nearly eight years of full-time installations in Spain we know what works: clear explanations in English, personal service, and systems tested every day in real homes. More than 70 customer videos show how sirens up to 113 dB drive intruders away before they get inside.

Our customers value our personal service and reliable systems, with an average score of 4.8 on Google. Based on more than 3,000 installations and 150+ reviewers, we are proud of the genuine experiences shared by expats in Spain. See why our customers recommend us on our reviews page.

Mainly Dutch- and English-speaking expats, holiday home owners, and permanent residents in Spain – especially on the Costa Blanca and Costa Cálida. People who want quality and honesty over cheap promises, and a system they truly own without hidden monthly fees.

Yes – more than 3,000 installations in Spain and a Google score of 4.8 based on 150+ reviewers. Our reviews page shows real experiences, from fast installation to years of aftercare.

We stand out with subscription-free AJAX systems, EN 50131 Grade 3 security, outdoor detection, and personal English-language service – unlike providers with monthly fees, contracts, and misleading monitoring centre claims. We are installers who fit systems ourselves as an accredited Ajax Systems Partner, not salespeople chasing commission.

Usually not. We install custom AJAX Grade 2 or 3 with outdoor detection where needed — sensors and sirens tailored to your property, with no monthly contract. A typical subscription package is different: fixed base kit, mostly indoor sensors, little customisation, multi-year contract. On paper both look like “an alarm”, but you are comparing two product categories.

With standard subscription packages we often see: no outdoor siren, alerts via the monitoring centre first (not directly on your phone), no local reaction during signal disruption, and you rent the system instead of owning it. With our installations: outdoor detection where needed, a siren that still sounds during disruption, direct app alerts, and full ownership after one payment.

We are not saying all subscription systems are worthless; we are saying you are comparing different products. So compare not only on monthly price, but on what happens at 03:00 when someone walks up your drive.

Do not sign before you know what will be installed — and what happens when things go wrong. Picture 03:00: someone walks up your drive, you are asleep, your neighbours are asleep. What does your system do outside, on your phone and at the monitoring centre?

1. Does a loud siren sound outside? Not a soft beep indoors, but noise neighbours hear. Typical subscription: often no.

2. Do you get an instant alert? With many subscriptions the alert goes to the monitoring centre first. If you do not answer, often nothing further happens.

3. Does it still work during signal disruption? A jammer blocks the radio link. Does the siren still sound and do you get an alert? In our tests with standard packages: often nothing.

4. Can the monitoring centre call the police directly? In Spain, no — not without reaching you first (Law 5/2014), regardless of sales talk.

With most standard subscription packages the answer to three or four points is no. Ask every salesperson to demonstrate on your screen — not just explain what happens “somewhere in the background”.

People often focus on price and assume quality must be fine because a system is popular. Popularity sometimes comes from aggressive sales and commissions – not real quality. Look for three things: reliable jamming detection (not just a sticker on the box), outdoor detection that stops intruders outside, and no monthly fees that mean you never truly own the system. Many systems without these features are sold with false promises about police response and monitoring centres.

Yes – our fully wireless AJAX systems are ideal for rental properties. Sensors and sirens are mounted with adhesive strips or screws in discreet positions – no breaking or major drilling required. When you move, components can be removed and taken with you. Always discuss this with your landlord; we are happy to advise on a neat, reversible installation.

“Free” installation is a lure. You pay through the subscription: often around €43 per month for the first 6 months, after which the fee often rises towards about €60. The contract runs for several years, often 2 years or longer. The rate after the introductory period is rarely fixed in the advert. Early cancellation can still trigger installation charges.

After a few years you have paid for the system several times over without owning it. Our AJAX systems are a one-time purchase and fully yours — you save significantly in the long run and keep full functionality without ongoing payments.

Yes. AJAX is the world’s first manufacturer with a fully wireless alarm system certified to EN 50131 Grade 3 – the strictest European standard for professional burglary protection. The Jeweller protocol ensures reliable communication up to 2,000 metres, with built-in jamming detection and automatic frequency switching. Sensors offer battery life of up to seven years. We are an accredited Ajax Systems Partner and install AJAX exclusively – after thousands of installations we know exactly what works best in Spain.

Direct notifications on your smartphone are faster than a monitoring centre with a legal verification requirement. Under Spain’s Ley de Seguridad Privada (Law 5/2014, Articles 43 and 44), a private monitoring centre cannot alert the police directly – the owner must be contacted first. During a real alarm you are often unreachable (asleep, on holiday, phone on silent). With direct AJAX notifications you see within seconds what is happening and can call yourself. You stay in control, without monthly fees or dependence on a third party.

The base is the same: hub, photo sensor and outdoor siren. The difference is the plot. An apartment is usually compact (front door, maybe a balcony) with limited outdoor detection. A townhouse more often needs outdoor detection (terrace, rear garden). A villa often needs coverage around garden, terrace or driveway; type and number of sensors are set on site. See apartment, townhouse and villa.

Not every webshop is a partner. Accredited means Ajax Systems recognises us as an official partner: full product line (including Superior Grade 3), correct configuration, certificates on request and aftercare. We design, install, test and explain on site — we do not just ship a box. More: accredited Ajax Systems Partner.

Every system is built around an AJAX Hub – the brain of your security. Via the Jeweller protocol, wireless sensors, sirens, and control devices communicate with the Hub without cables through your home. You operate everything via the app, remote control, keypad, or tag reader. When movement is detected you receive an instant push notification; the siren (up to 113 dB) can drive intruders away before they enter. Outdoor detection is our speciality: movement is detected outside, not only in the hall or bedroom.

We recommend professional installation for optimal performance and correct placement of outdoor sensors – that is the difference between recording a break-in and actually preventing one. As an accredited Ajax Systems Partner we configure the Hub, test every zone, and explain the app on site. Self-installation is technically possible, but wrong sensor positions or settings lead to false alarms or blind spots. Our installation usually takes 2 to 4 hours and is always included in our price.

Usually 2 to 4 hours, depending on the property and number of sensors. We arrive prepared with all components, configure the Hub on site, and walk you through the app. Installation is often possible within 24 to 48 hours of your first contact.

The Hub needs mains power (a socket) and an internet connection via ethernet, Wi-Fi, or a SIM card as backup. No landline is required – all sensors and sirens work wirelessly via the Jeweller protocol. For homes with an open meter cupboard on the street we strongly recommend a SIM card: if power fails, your system stays online and you still receive notifications via the mobile network.

The Hub’s built-in backup battery keeps the system running for up to 16 hours. Sensors and sirens keep communicating via the Jeweller protocol – even without mains power. With a SIM card in the Hub, notifications continue via the mobile network even if your router fails. In Spain, power cuts are a known burglary tactic; this combination is therefore essential.

The alarm system itself keeps working: sensors, sirens, and the Hub communicate via the Jeweller protocol independently of your Wi-Fi. For notifications to your smartphone, the Hub automatically switches to the SIM card (mobile network). You still receive push alerts during router failure or power cuts – provided a SIM card is active.

Yes. With a SIM card in the Hub the system works fully without fixed internet. This is ideal for new builds or holiday homes where the broadband line is not yet connected. You can always add Wi-Fi or ethernet later as an extra communication channel.

No – most AJAX motion detectors are pet-friendly and ignore animals up to approximately 20 kg. For outdoor sensors we set the detection zone and sensitivity to your situation, so dogs, cats, and other pets do not cause false alarms. We test this together with you after installation.

Via the AJAX app on your smartphone, remote control, keypad, or tag reader – whichever you prefer. You can arm and disarm per zone, with an entry delay or geofencing. You see live status for every device, including battery level and signal quality.

False alarms are rare thanks to smart AJAX sensors with temperature compensation and anti-masking. With outdoor detection, a flapping cloth or loose branch can sometimes trigger an alert – we resolve this by adjusting the detection zone or sensitivity. Professional placement by our installers prevents most false notifications.

We work exclusively with AJAX – and that is no coincidence. AJAX is the world’s first fully wireless system certified to EN 50131 Grade 3, and offers reliable jamming detection via the Jeweller protocol and automatic frequency switching, plus outdoor sensors that stop intruders outside. After nearly eight years and 3,000+ installations in Spain we know this is the system that makes the real difference in practice.

Indoor detection alerts you only after an intruder is already inside – often in the hall or bedroom. Outdoor detection picks up movement around your home, terrace, or garden and activates a 113 dB siren before a window is forced. In practice, outdoor sirens drive intruders away in the vast majority of cases; indoor-only systems often react too late. That is why outdoor detection is our speciality.

Yes – through integrations and automation scenarios in the AJAX app you can link the system to smart home devices, for example lights that switch on during an alarm or notifications to multiple family members. We are happy to advise which connections make sense for your home.

AJAX detects sabotage and jamming via the Jeweller protocol. When a signal jammer is used, the system automatically switches to another frequency, activates the siren, and sends an instant notification to your smartphone – even if the Hub itself is affected. Outdoor sirens also have their own backup battery and built-in jamming detection: the siren sounds autonomously, without relying on the Hub or a monitoring centre. The sabotage attempt becomes useless and the intruder is driven away.

With AJAX, yes: in the app you see per sensor the current signal strength and interference values — live and continuously updated. That tells you whether the wireless link is healthy and whether disruption is being detected.

With most standard subscription packages that transparency is missing. So do not ask a salesperson to explain what is monitored “somewhere in the background” — ask them to show the values on your screen. If they cannot demonstrate it, that is an answer in itself.

No salesperson — the technician who also installs the system. Steps: orientation and prices → no-obligation home visit → on-site survey and quote → if you agree, often install the same visit (otherwise we schedule separately) → app walkthrough and aftercare. Installation usually takes 2 to 4 hours. Details: how we work.

MotionCam sends HD photos to your phone on alarm. PHoD (Photo on Demand) does the same, plus you can request a photo manually — even without an alarm. Useful for a holiday home in Spain. That is why PHoD is in our standard advice (if the hub supports it; Hub 1 does not).

Yes. Warning signs are included as standard in the starter kit. Visible security is the first deterrent: we mount signs on the facade during installation. You choose the size (A3, A4 or A5); the colour is always the same with us.

The basis of every system is an AJAX Hub – modular and expandable with sensors, sirens, and control devices to suit your needs. Prices for the Hub and common components are listed clearly on our homepage, including professional installation. During a no-obligation home visit we review your property together and you receive a tailored quote – with no surprises afterwards.

Contact us by phone, WhatsApp, or our appointment page. We schedule a no-obligation home visit: we assess your property, discuss outdoor detection, and advise on the right Hub and sensors. You then receive a clear tailored quote. No sales pressure – just honest advice from installers.

No – you pay once for the system and installation. After that you own it fully, with no subscription or contract. Optionally, after two years you can take out a service agreement (€69 per year for phone and email support), but this is not required. The AJAX app and notifications always remain free to use.

It often starts at around €43 per month for the first 6 months. After that the fee often rises towards about €60. After a few years, €45 to €65 per month is very common. The contract runs for several years, often 2 years or longer. The rate after the introductory period is rarely fixed in the advert. So calculate over ten years, not with the introductory rate: monthly fee × 120 months. At €60 per month that is €7,200. At €45 to €65 per month it is €5,400 to €7,800. And you still do not own the system.

Outdoor sensors, cameras or extra jamming protection are often extra per month with subscriptions. Was installation “free”? Early cancellation can still trigger installation charges. You are paying not only for security, but for a contract — while the base package often stays limited to indoor sensors.

A one-time AJAX investment of €2,500–€3,500 with outdoor detection then looks less “expensive” — especially because you pay no monthly fee afterwards and the system is yours.

In practice we almost always start with Hub 2 Plus + MotionCam PHoD + StreetSiren (outdoor siren), fully installed. The starter kit is € 899 excl. VAT. Discount for installation during the 1st home visit: € 100, then you pay € 799 excl. VAT. An installation at a later time stays € 899 excl. VAT. Including installation and 2 years on-site warranty. The hub has Wi-Fi and 4G, you get a photo on alarm (and on-demand with PHoD), and an outdoor siren that neighbours and the street can hear. Warning signs are included as standard in the starter kit. You can start lower. Then you give up the Hub 2 Plus, photo verification, 4G and wifi as extra backup channels to the Ajax Cloud, or that 2-year on-site warranty. Outdoor detection is custom. Overview: starter kit.

Optional SIM card about €69 per year. If the router fails or power drops, push notifications still go out over mobile data. Hub 2 Plus has Wi-Fi + 4G: place the hub where mobile signal is strongest — not only next to the router. Without a SIM the system still works locally (sensors and sirens); phone alerts then depend on fixed internet.

2 years on-site warranty: if there is a defect, the technician comes to you. Search for an answer first via Ask a question. Still stuck? Ticket or home visit via Support — not via WhatsApp. If something is truly defective under warranty, we come on site free of charge for repairs. After two years we offer an optional service agreement for €69 per year (phone and email support). As an accredited Ajax Systems Partner we know the system inside out and help you quickly with questions or adjustments.

Up to seven years according to the manufacturer under normal use; in practice we see an average of around four years (battery type CR123A). The app shows the battery level of every sensor and warns you well in advance. Replacement instructions are in the app under ‘Manual’ – replacing them is straightforward and does not require a visit from us.

The system runs automatic self-tests: the Hub polls every sensor at least every 12 seconds for reachability, battery status, and tampering. If something is wrong you receive an instant app notification. Manual testing is not necessary, but you can use the test mode in the app if you find that reassuring.

With outdoor detection the siren (up to 113 dB) activates as soon as someone enters your property – intruders flee in the vast majority of cases before reaching a window or door. You receive an instant push notification, with a photo where applicable (MotionCam). With indoor detection only, call the local police yourself (save their number in your phone). In both cases your own report takes priority – faster than via a monitoring centre that must verify first.

This is a common sales tactic to tie you to a monthly subscription. In practice, the police respond to a report from the property owner – and that report takes priority. The opposite applies to monitoring centres: under Spain’s Ley de Seguridad Privada (Law 5/2014, Articles 43 and 44), a private monitoring centre cannot simply alert the police. It must first contact the owner to verify whether a genuine break-in is taking place. If you do not answer – because you are asleep, on holiday, or your phone is on silent – the police will in most cases not be dispatched. You then pay every month for an intermediary step that adds nothing in exactly that situation. With direct notifications on your smartphone, you can call the police yourself, at no extra cost and often faster, as soon as you see that something is wrong.

Via the Jeweller protocol, AJAX detects signal jamming on every sensor and in the Hub. When jamming is detected the system automatically switches to another frequency, activates the siren, and sends an instant push notification to your smartphone. Outdoor sirens have their own backup battery and sound autonomously – even if the Hub is affected. With most other wireless systems, jamming silences everything without any alert; AJAX is designed to react more aggressively when interference occurs. Our comparative test with standard subscription packages: jamming explained.

In a controlled test we used a broadband jammer against standard subscription packages (mostly indoor detection, Grade 2 homologated) and our own AJAX installations. With those subscription packages we saw: no siren, no phone alert, no alarm at the monitoring centre — the system stayed silent while the jammer was active. Only after switching it off did everything seem normal again. With our AJAX installations (Grade 2 and Grade 3, with outdoor detection) we saw disruption detection, autonomous siren and direct app alert. Our results apply to the systems and conditions we tested — not a statement about every brand. The chain to understand: intruder on drive → jammer on → system silent → monitoring centre hears nothing → no outdoor siren → undisturbed entry. That is why we do not start comparisons with price, but with what happens locally during disruption.

No system is 100% hack-proof, but AJAX minimises risk with encrypted communication (AES), EN 50131 Grade 3 certified security, and no default passwords on devices. In practice, hacking a professionally installed AJAX system is extremely difficult – far harder than physically breaking in or disabling a system with a jammer when adequate jamming protection is missing.

That is your choice. Motion detectors with camera (MotionCam) send an encrypted photo to the AJAX cloud or your smartphone when an alarm triggers – not continuous recording. For video doorbells and NVR cameras you can choose local storage or secure cloud storage. AJAX does not store images without your consent; you retain control of your data.

Outdoor detection is the best protection: a loud siren and instant notification mean intruders rarely stay. For squatters, the sooner you know someone is on your property, the sooner you can act. With direct AJAX notifications you can call the police yourself – your report takes priority. Prevention outside the home stops the situation escalating into occupation in the first place.

The Hub polls every sensor at least every 12 seconds and runs automatic self-tests. In the app you see the status of every device: reach, battery, tampering, and signal quality. If something is wrong you receive an instant notification – you do not have to guess whether everything still works.

An indoor siren helps you inside, but deterrence starts outdoors — neighbours and the street need to hear it. We recommend at least one outdoor siren; if you only want one siren, prefer outdoor over indoor only. Larger or remote villas often need two outdoor sirens. Prefer a siren with its own jamming detection so noise still happens locally if the radio is jammed. More: outdoor siren & jamming detection.

No – in practice, calling yourself is faster. A monitoring centre must, under Spain’s Ley de Seguridad Privada (Law 5/2014, Articles 43 and 44), contact the owner first to verify whether a genuine break-in is taking place. That takes minutes. With direct AJAX notifications on your smartphone you see within seconds what is happening and can call yourself – without a middleman and without monthly fees.

Technically yes, but with outdoor detection and an outdoor siren it isn’t needed. As soon as someone enters your garden or terrace, the siren sounds and an intruder runs off straight away. For our customers it has always resolved itself so far, without the owner or the police having to do anything. Noise on the spot is still the only thing that drives an intruder away immediately. A monitoring centre may also only call the police after it has reached you or your contact person and the alarm has been confirmed: several sensors in a row, or a check with video or audio (Ley 5/2014 and Orden INT/316/2011). Direct alerts via the AJAX app are faster, and you stay in control.

Yes – this is one of the most common misleading claims in Spain. Private alarm systems have no direct line to the police. Even an accredited monitoring centre may only alert the police after verifying with the owner (Law 5/2014, Articles 43 and 44). Providers promising “direct police connection” are mainly selling an expensive subscription – not extra security. Read more on our monitoring centre myths page.

Yes. Your own report to the police takes priority. Call the local emergency number (save it in your phone) as soon as you see via the AJAX app that something is wrong. That is faster than via a monitoring centre that must reach you first – and often fails if you are asleep, on holiday, or your phone is on silent.

Yes: Ajax DoorBell — 4 MP HDR, two-way audio, PIR + AI (person, animal, vehicle), live in the Ajax app and linkable to the alarm system. Wi-Fi with Jeweller/Wings as fallback. External power (not a pure battery doorbell). Storage via NVR and/or Ajax Cloud, no microSD. Note: a doorbell is not outdoor detection. Details: Ajax DoorBell.

All three are Ajax wired (PoE or 12 V), with AI, NVR and alarm linking. BulletCam: highly visible, strong deterrent, facade/driveway. TurretCam: a bit more discreet, versatile. DomeCam Mini: discreet, indoor or covered. We install wired cameras only when Cat6a/PoE is already present or planned in new builds — we do not pull new cables through existing walls. Overview: Ajax wired cameras.