Ajax Hub (4G): the smart core of your security system with LTE backup
The Hub (4G) is the control panel of your Ajax system. It monitors all your detectors via the encrypted Jeweller radio and, in the event of an alarm, alerts both you and the alarm receiving centre within a few milliseconds.
The Hub (4G) connects via a wired internet connection (Ethernet) and has a mobile SIM card as backup. The mobile channel works on 4G (LTE), with 2G (GSM) as a fallback. You set it up in the free Ajax app; you pair detectors with a single tap. The system is protected at software level and switches frequency automatically in the event of jamming. Because 2G is being phased out, the LTE connection of this model is more future-proof than the 2G-only Hub (2G), which makes it the recommended entry-level model.
Why the Ajax Hub
Jeweller radio
Encrypted two-way radio with dynamic key. Range of up to 2000 m in open terrain and automatic frequency hopping in case of jamming.
Ethernet plus 4G
Two communication channels: a wired internet connection and a SIM card that works on 4G (LTE), with 2G (GSM) as a fallback.
No subscription
Control and configuration via the free Ajax app. You only need a SIM card for the mobile backup.
Backup during a power failure
Built-in 3 Ah Li-ion battery keeps the system running for up to 15 hours if the power fails.
Quick to install
With the SmartBracket mount, the Hub is up on the wall in a few minutes. You add detectors with one click in the app.
Up to 100 devices
Manages up to 100 Ajax detectors, 50 users and 9 security groups. Please note: this Hub does not support MotionCam photo verification.
The Hub (4G) at a glance
The panel from the front, side and back, plus an impression of the installation with the SmartBracket mount.

Self-installation
The Hub (4G) is intended for indoor installation. Mount it using the supplied SmartBracket mount, connect the mains power supply and the network cable, and insert a micro SIM card if you want mobile back-up. Then you pair the Hub in the free Ajax app (iOS and Android) and add detectors with one click. Mounting materials are included in the box.
Free Ajax software
Operate and manage your system on any device, without a subscription.
Ajax Security System
The free app for your smartphone: control your system on the go, receive notifications and alarms immediately and watch live footage from your cameras.
Download on theApp StoreGet it onGoogle PlayAjax Desktop
Manage your entire system from your computer: view all your cameras in one customisable video wall, receive real-time notifications and arm or disarm with a single click.
Download forWindowsDownload formacOSAjax TV
View the footage from your security cameras on an Android TV screen and keep your home or business in continuous view on the big screen.
More infoAjax TVAjax Media Player
Play back videos that you have saved from your Ajax cameras and use a digital signature to check that the footage has not been tampered with.
More infoAjax Media PlayerTechnical specifications
| Capacity | |
| Wireless Ajax devices | Up to 100 (of which max. 10 sirens and 1 range extender) |
| IP cameras or recorders | Up to 10 (Dahua, Hikvision, Safire, EZVIZ, Uniview, with RTSP) |
| Users | Up to 50 |
| Security groups | Up to 9 |
| Automation scenarios | Up to 5 |
| Photo verification (MotionCam) | Not supported |
| Wireless communication | |
| Technology | Jeweller, two-way with block encryption and a dynamic key |
| Frequency band | 868.0-868.6 MHz (depending on region) |
| Transmit power (ERP) | Up to 20 mW |
| Radio range | Up to 2000 m in open space |
| Anti-jamming | Automatic frequency change (frequency hopping) |
| Communication channels | |
| Ethernet | 1x RJ45 (8P8C), up to 100 Mbps |
| Mobile | 1x micro SIM card, 4G (LTE) with 2G fallback, GSM 850/900/1800/1900 MHz |
| Power supply | |
| Main power supply | 110-240 V AC, 50/60 Hz, up to 10 W |
| Backup battery | Built-in Li-ion 3 Ah, up to 15 hours offline |
| Housing | |
| Mounting | SmartBracket mounting plate, indoor use only |
| Dimensions | 163 x 163 x 36 mm |
| Weight | 360 g |
| Operating temperature | -10 to +40 °C |
| Humidity | Up to 75% |
| Colour | White or black |
Manual and compatibility
Which Ajax Hub suits you?
Compact and wireless, keenly priced
The Hub (2G) is the affordable entry-level option without photo verification, for a small, fully wireless system.
Small home, strong back-up
Without photo verification but with LTE back-up? Choose the Hub (4G) (this page).
You want photos on an alarm
From the Hub 2 (4G) onwards you get photo verification with MotionCam. The logical choice for most homes.
Large or complex premises
The Hub 2 Plus (4G) adds Wi-Fi as an extra channel, for maximum redundancy.
Wired system (Fibra)
The Hub Hybrid (4G) combines wired Ajax Fibra with wireless Jeweller, for professional installations.
The Ajax hubs compared
The difference between the hubs lies mainly in the connection (Ethernet, wifi, 2G or 4G), photo verification with MotionCam, the capacity and the system type (wireless only or hybrid with wiring).
| Model | Connection | Wi-Fi | MotionCam | System type | Suitable for |
|---|---|---|---|---|---|
| Hub (2G) | Ethernet + 2G (1 SIM) | No | No | Wireless | Entry level, small system without photo verification |
| Hub (4G) this model | Ethernet + 2G/4G (1 SIM) | No | No | Wireless | Small system with strong mobile back-up (LTE) |
| Hub 2 (2G) | Ethernet + 2G (2 SIM) | No | Yes | Wireless | Medium-sized, with photo verification |
| Hub 2 (4G) | Ethernet + 2G/3G/4G (2 SIM) | No | Yes | Wireless | Medium-sized, photo verification plus LTE back-up |
| Hub 2 Plus (4G) | Ethernet + Wi-Fi + 4G (2 SIM) | Yes | Yes | Wireless | Large or complex, maximum redundancy |
| Hub BP (4G) | 4G only, no network cable (2 SIM) | No | Yes | Wireless | Locations without mains power or cabling, runs on battery |
| Hub Hybrid (4G) | Ethernet + 4G (2 SIM) | No | Yes | Hybrid (wired + wireless) | Professional, (partly) wired Fibra systems |
MotionCam stands for photo verification: in the event of an alarm, the system sends photos along, so you can see immediately whether something is really wrong. Only the Hub 2 models and newer support this.
Frequently asked questions about the Ajax hubs
What is the difference between the Hub and the Hub 2?
The Hub 2 adds two things compared with the original Hub (2G and 4G): photo verification with MotionCam and a second SIM card. The original Hub does not support MotionCam. If you need photos with an alarm, choose at least a Hub 2 (4G).
What is the difference between the Hub 2 and the Hub 2 Plus?
The Hub 2 Plus adds Wi-Fi as a fourth communication channel (in addition to Ethernet and two SIM cards) and has a higher capacity. This makes it suitable for large or complex installations. For an average home, the Hub 2 (4G) is more than sufficient.
Which hubs support photo verification (MotionCam)?
MotionCam photo verification works on the Hub 2, Hub 2 Plus, Hub Hybrid and Hub BP. The original Hub (2G) and Hub (4G) do not support it.
2G is being phased out. Will my 2G hub still work?
Yes. Via the network cable (Ethernet), a 2G hub keeps working fully; only the 2G mobile back-up ceases to work once the 2G network is switched off. For new installations we recommend a 4G model, such as the Hub (4G) or Hub 2 (4G).
Do I need a subscription?
No. The Ajax app is free and requires no subscription. You only need an M2M SIM card if you want to use the mobile back-up (2G or 4G) alongside your internet connection.
What is the Hub Hybrid?
The Hub Hybrid is the only Ajax hub that combines wired Ajax Fibra with wireless Jeweller devices. With it you build a hybrid system, useful for professional or (partly) cabled installations and for thick walls of steel or concrete.
In the box
Ajax Hub (4G)
The panel itself.
SmartBracket mounting plate
Mounting panel for wall mounting.
Power and network cable
Mains power cable and an Ethernet cable.
Installation kit
Screws and wall plugs for mounting.
Quick start guide
Quick start guide to get started quickly.































john blondeau (verified owner) –
works perfectly and is still easy for a layperson to install
André Oremus (verified owner) –
Easy setup