Ajax Repeaters

Ajax: ReX and ReX 2

Manufacturer and Lineup

The "Repeaters" section presents two Ajax models — ReX and ReX 2 — from a company founded in 2011 in Kyiv by Aleksandr Konotopskyi, which over more than a decade has become Europe's largest security-system manufacturer, protecting more than 4.5 million people across over 180 countries.

The Weak-Signal Problem and How a Repeater Solves It

The typical situation a repeater is built for: the hub sits in a distribution panel on the first floor, while an opening detector is in the attic or a workshop at the back of the yard. On paper the distance fits within the rated range, but between the devices are several reinforced-concrete floors or dozens of meters of street, and the radio link keeps cutting in and out. A repeater solves exactly this problem.

The working principle is simple: a repeater is installed roughly in the middle of the problem stretch — wherever it can reliably "hear" both the hub and the distant detector that was previously losing connection. The device receives the detector's signal, amplifies it, and forwards it on to the hub, effectively doubling the system's effective coverage without relocating the hub or running extra cable.

Technical Advantages and Choosing

Five repeaters connected to a single system can extend the protected area to 35 square kilometers — a figure that makes the solution practical not just for a large private home but for geographically distributed sites: warehouse complexes with multiple buildings, production sites, or structures spread apart from each other.

Typical repeater installation spots include a stairwell between floors of a multi-story building, a wall closer to an outbuilding or annex, or a corridor connecting the main building to an additional structure — any point where a distant device's signal starts to weaken but the hub is still within reach.

A single Ajax hub supports up to five repeaters at once, letting coverage be extended gradually as needed — an owner can start with a base configuration and add repeaters only for the areas of a site where connectivity problems actually occur, instead of preemptively installing excess equipment.

Repeaters run on Ajax's own Jeweller protocol, ensuring compatibility with the company's entire range of wireless detectors and hubs without additional protocol configuration or risk of equipment incompatibility.

Ajax systems built on these devices became the world's first wireless security system certified to the European EN 50131 standard's highest tier, Grade 3 — a certification that extends to the entire equipment ecosystem, including repeaters, which relay critically important alarm signals.

Repeaters are powered from the 220V mains rather than a battery — a logical choice for a device operating around the clock at a fixed point, one that doesn't need the power economy required of battery-powered wireless detectors located where no outlet is available.

Installing a repeater requires no special skills or tools: the device plugs into the power supply and automatically registers in the system through the app, then immediately begins extending radio-signal coverage with no additional protocol configuration.

Before installing a repeater, it's worth doing a test placement and checking signal quality through the indicators in the Ajax mobile app — this lets you pinpoint the optimal mounting spot rather than relying solely on rough distance estimates.

Choosing specifically within the "Repeaters" section means comparing Ajax's products against other security-system manufacturers featured here on practical criteria: the maximum number of repeaters per hub, the coverage gain from each device, and compatibility with existing system equipment.

We'll Help You Calculate the Number of Repeaters

If your project involves securing a large or geographically distributed site where sensors' standard radio range falls short, Ajax repeaters deserve first consideration as a way to extend coverage without replacing the hub or running cables. Our consultants will help determine the optimal number and placement of repeaters for your site, and our delivery service will get the chosen equipment to you promptly anywhere in Ukraine.