DoorProtect Plus Fibra is designed to detect intrusion and burglary attempts, offering comprehensive coverage for doors, windows, skylights, and vaults. The detector, equipped with two reed switches as opening sensors, features protection against chattering in its operation. Two sizes of magnets provide more mounting options. The device also identifies shock and tilt with a built-in accelerometer, protecting the facility even when windows are in airing mode. All in line with the Ajax user experience, ensuring quick and easy installation of the device. 

No intruder goes unnoticed 

High-end reed switches for reliable opening detection 

DoorProtect Plus Fibra features two durable reed switches with a minimum service life of 1,000,000 openings, guaranteeing decades of trouble-free operation. Housed in resilient plastic capsules, these switches remain intact even in cases of drops or transportation, ensuring the detector’s effective functionality irrespective of magnet placement. 

• Reed switch service life exceeds 1,000,000 openings
• Effective detection wherever the magnet is placed — left or right
• Plastic capsules for protecting reed switches during transportation 

Immediate detection of threats 

The built-in accelerometer responds swiftly to shocks, detecting potential burglary attempts such as door forcing and vault breaking. The shock sensor has three levels of sensitivity, which can be adjusted to match the secured facility specifics. The detector can also ignore a single impact to minimize the risk of false alarms triggered by external factors. Whether there are vibrations from neighboring constructions or heavy passing traffic, the installer can choose the most appropriate settings for accurate detection. 

• Early identification of threats through shock detection
• Three sensitivity levels
• Single shock ignoring to prevent false alarms 

Windows protection in an airing mode 

The built-in accelerometer is designed to protect open windows, seamlessly adapting to diverse facility requirements. Installers can select a normal tilt angle for doors or windows, ranging from 5 to 25 degrees. The system swiftly detects even the slightest deviations from the usual position and provides customizable tilt detection durations, ranging from 1 second to 1 minute. In case the tilt angle surpasses the specified threshold for an extended period, the system raises an alarm.  

• Tilt detection
• Selection of the normal tilt angle
• Adjustable time of alarm 

Enhanced security with additional detectors  

DoorProtect Plus Fibra has terminals for connecting any third-party wired NC detector, enhancing the reliability of the entire system. For example, an installer can integrate an additional detector operating on a different principle, such as a roller shutter motion detector. When connected to DoorProtect Plus Fibra, it promptly responds to alarms from detectors and cable breakage. 

Use a detector as a doorbell 

The Chime feature transforms the combination of an Ajax opening detector and Ajax siren into a shopkeeper’s bell. When the system is disarmed, the siren notifies about door openings with one of four available short beep patterns. Pro users can choose the volume of sound, and different patterns can be assigned for separate entrances, making it easy to recognize whether someone entered through the main or a back door. 

• Door opening sound signals
• Setting up signals for different security groups
• Customisable signals for separate entrances 

System supervision  

All Ajax devices perform automatic self-diagnosis and report their states to the hub. Essential parameters, including tamper, communication, power supply, and sensor statuses, are continuously monitored. The Ajax Cloud server controls communication between the hub and Ajax apps, ensuring instant notifications for ARCs, security companies, and users. In case of any malfunction or communication failure, an engineer is promptly informed to provide necessary services. 

• Automatic device self-diagnosis with status report
• Regular polling to display the current device state on apps
• Instant maintenance notifications

Unique wired technology 

An Ajax system uses secure two-way communication based on Fibra proprietary protocol. It features encryption and device authentication to prevent sabotage, spoofing, and data theft. Fibra lines are versatile and support connecting different types of devices to one line: sirens, keypads, and detectors with photo verification.

• Up to 2,000 m of wired communication with a hub or a module that extends the Fibra line2
• One line for different types of devices
• Photo delivery via Fibra line without interference
• Protection against sabotage and spoofing 

Energy efficiency as a priority 

Fibra communication requires minimum power consumption, with the module consuming only up to 0.036 W at its peak. Fibra operates on the TDMA principle. Each device has a short time frame to exchange data with a hub, and its communication module remains inactive the rest of the time. This significantly reduces power consumption and helps avoid interferences even when multiple devices communicate simultaneously. 

• Detector power consumption is up to 0.036 W
• TDMA and power-saving modes 

PRO is king 

The myth about wired systems being difficult to install is busted. Ajax minimised an expensive, long, and dusty experience for PROs by developing an ultimate set of tools to make the process easy and flexible, from project design to client support and system maintenance. Everything for smooth and quick installation is included. Intuitive Ajax apps help make the device a part of the system, and each device can be reconfigured remotely at any moment. No need for programmers — everything is available out of the box.