The Ajax 12-24V PSU for Hub 2 / Hub 2 Plus / ReX 2 is an alternative power supply board that replaces the standard 110/230 V power unit inside the device and allows the hub or range extender to operate from a low-voltage source. This enables the Ajax system to run on a 12?24 V DC power supply or an external battery, making it suitable for locations without stable mains power. Package contents: 12-24V PSU for Hub 2 / Hub 2 Plus / ReX 2, terminal adapter, quick start guide. Compatible devices: Hub (4G) Jeweller, Hub 2 (2G) Jeweller, Hub 2 (4G) Jeweller, Hub 2 Plus Jeweller, ReX 2 Jeweller.