A power supply unit, connecting Hub/Hub Plus control panels and ReX radio signal range extender to low-voltage power sources.
At warehouse

At warehouse

Use Ajax in premises lacking electricity or having an unstable power supply. A 12 V power supply unit allows connecting hubs and radio signal extenders to low-voltage networks or use a portable battery.
In trailer

In trailer

Ajax protects your home, even if it goes on wheels. Connect the hub to a car or portable battery, and let the security system travel with you.
On yacht

On yacht

Insert a SIM card and connect the hub to the on-board network or battery so that Ajax always guards your boat at the pier.


The power supply unit is compatible with Hub, Hub Plus, and ReX. It features a standard socket for connecting the power jack plug and has a bundled terminal adapter.


12V PSU is installed into the device body, replacing the pre-installed 110/230 V power supply unit.

Tech specs

Input voltage
8-20 V DC
Output voltage
4.65 V ± 3%
Switch-on voltage
8 V ± 2.5%
Switch-off voltage
6.9-7.5 V (depending on load)
Input current
<1 А
Output current
1,5 А
Socket: 6,5 х 2 mm
Plug: 5,5 х 2,1 mm (power jack)
138 х 64 х 13 mm
30 g
Complete set
12V PSU for Hub/Hub Plus/ReX
Terminal adapter
Quick guide

Choose the most suitable Ajax set in 2 minutes

Tell us what you need to protect and we will put together a set of detectors and devices for your premises.
If you see any mistape, please select text and press Ctrl + Enter

Spelling error report

The following text will be sent to our editors: