SIM card for alarm systems: multi-network, no lock-in
M2M SIM card for alarm panels that reaches Movistar, Vodafone and Orange on one SIM and switches automatically to whichever network has the best signal. Built for panels that accept third-party SIMs (Ajax Hub 2 and Hub 2 Plus, Risco, Jablotron, Paradox and similar), whether as the primary path or as backup when the fixed line goes down. Triple-cut 2FF/3FF/4FF, activation in minutes, billed in euros from Spain.
Why a multi-network SIM in an alarm panel
If one network drops, the alarm stays online
A single-carrier SIM leaves the panel silent exactly where that carrier has a hole. Ours holds agreements with all three Spanish networks: the panel registers on whichever has the best signal at the site and switches on its own if that network degrades — no hardware change, no reprogramming.
Real backup when the fixed line fails
Most alarm communication failures are not sabotage; they are the fixed line or the router going down. With the SIM in the backup slot, the panel keeps signalling to the monitoring centre or to your phone while the line is out — precisely when it matters most.
Ready for the 2G and 3G shutdown
Many older panels still communicate over 2G or 3G, and those networks are being switched off across Spain and Europe. Our SIMs run on 4G LTE and LTE-M alongside the legacy bands, so a 4G-capable panel will not be stranded when the carrier retires the old network. Our 2G sunset guide has the timeline.
Minimal usage, proportional price
An alarm uses very little data: keep-alives, events and the occasional image if a camera is attached. You pay for the megabytes you use from €0.005/MB, with no inflated line fee and no lock-in — rather than a consumer mobile tariff applied to a device that uses a few megabytes a month.
Management portal and usage alerts
See each SIM's status, usage and connection history in the portal. Configure alerts and, if you manage customer installations, label each SIM per site and provision in batches via CSV or the REST API.
Support that knows the equipment
Engineering team in Seville. We help with the APN, the panel configuration and validating coverage at the real location before you place the large order. If your panel does not accept third-party SIMs, we tell you before selling you anything.
Coverage and compatibility
The SIM connects to all three national networks through multi-network agreements and automatically selects the strongest signal at each location. Outside Spain it keeps working on 750+ networks in 190+ countries — useful for second homes, Portugal or offices abroad.
Networks in Spain
- Movistar
- Vodafone
- Orange
Technologies
Compatibility: works in panels that accept third-party SIMs — Ajax Hub 2 and Hub 2 Plus, Risco, Jablotron, Paradox, industrial panels and backup routers. Stated up front: systems sold with proprietary monitoring contracts (Securitas Direct or Movistar Prosegur, for example) usually ship a locked carrier SIM and will not take an external one. If you are unsure, send us the model and we check it with you.
Useful options in security installations
Beyond basic connectivity, these layers cover what actually comes up on real installations:
Static IP for remote access
If the panel or recorder needs inbound access, a static IP avoids depending on DDNS and fragile port forwarding. Available as a per-SIM add-on.
See static IPPrivate APN for installers at scale
Dedicated APN with your address range and an IPSec or WireGuard tunnel to your control centre, so panels are never exposed to the public Internet.
See private APNPooled data across sites
A shared allowance for your whole portfolio: low-usage sites offset heavier ones, and you stop paying for unused bundles on every SIM.
See plansSIM for the attached camera
If the site has a 4G camera as well as the panel, the usage profile changes completely. That case is covered on the camera page.
SIM for camerasCommon cases
- Home alarm with the SIM as fixed-line backup
- Second home or rural property with no fixed line
- Industrial unit, workshop and warehouse
- Retail premises and multi-site franchises
- Construction sites and site huts with temporary alarms
- Isolated farms and agricultural holdings
- Storage units and self-storage
- Installers managing a customer portfolio
- Replacing 2G/3G panels ahead of the shutdown
- Residential communities and garages
Pricing
You pay for the data the panel uses, with no lock-in, billed in euros from Spain. A typical alarm uses very few megabytes a month, so the real cost per installation is low.
From €0.005/MB depending on volume. No per-SIM minimum. The natural choice for one or a few installations.
Monthly data shared across all your sites, with usage alerts. Built for installers.
Custom rates with SLA, dedicated private APN and priority support for large portfolios or monitoring centres.
Want to test first? The SIM Test Kit is €15 VAT included: one multi-format SIM (2FF/3FF/4FF) with 1 GB for 12 months and free shipping in Spain — enough to validate the panel and the coverage before ordering the rest.
Frequently asked questions
- Does this SIM card work with an Ajax alarm?
- Yes, as long as the hub accepts third-party SIMs, which is the case for Ajax Hub 2 and Hub 2 Plus. They use the micro-SIM (3FF) format included in our triple-cut card and need mobile data; we give you the APN to set in the app. What we cannot do is enable a SIM on a system with proprietary monitoring that only accepts its provider's SIM.
- What is the best SIM card for an alarm?
- For an alarm, what matters is not the price per gigabyte but never losing the network. That is where a multi-network SIM beats a single-carrier one: if Movistar has a hole at that property, the panel registers on Vodafone or Orange without anyone intervening. After that, what counts is a format the panel accepts, no lock-in, and pricing that matches a device using a few megabytes a month.
- Can I use a normal prepaid mobile SIM in an alarm?
- It sometimes works technically, but it causes problems: consumer prepaid SIMs expire through inactivity without top-ups or calls, get deactivated without warning, are tied to one network, and some block M2M data traffic. An alarm that uses almost nothing is exactly the profile consumer carriers eventually switch off. An M2M SIM is designed to stay connected for years while using very little.
- What happens when 2G and 3G are switched off?
- Panels that only communicate over 2G or 3G will lose communication when their carrier retires that network, and the timeline is already under way in Spain and Europe. Our SIMs work on 4G LTE and LTE-M as well as the legacy bands, so a 4G-capable panel is covered; one that only speaks 2G will need replacing. Our 2G sunset guide covers the detail.
- How much data does an alarm use per month?
- Very little: a panel sending only keep-alives and events typically uses a few megabytes a month. If the installation includes image or video verification, usage rises sharply and should be sized separately — we help you estimate it for your specific case.
- I am an installer with many sites — how do I manage it?
- Through the portal and the REST API: batch provisioning via CSV or JSON, labels per site or customer, plan changes, pause and reactivation, usage alerts and signed webhooks to feed events into your own system. With a pooled bundle you also stop paying for unused data on every SIM.
Request a test SIM for your alarm
Tell us which panel you have and where the installation is. We validate compatibility and coverage, and send you the SIM Test Kit so you can try it before deciding.