MotionProtect Plus Fibra is a wired motion detector with an additional K-band microwave sensor activating when a PIR sensor is triggered. This ensures accurate motion detection even in areas with complex thermal interference, like air conditioners or fireplaces, minimizing false alarms. Modern design complements any space, and the SmartBracket mounting panel simplifies installation. Configuration in the app removes the need for engineers to make on-site visits to address minor requests.

PIR sensor
All Ajax motion detectors use PIR sensors by Excelitas Technologies — a field-leading American manufacturer which specializes in designing and producing optronic components since 1931.
Ajax Systems constantly proves the sensor's superior quality at the production stage: we test 100% of manufactured devices. Wrapped into Ajax technologies, the sensors bring the utmost accuracy of intrusion detection.

K-band microwave sensor
The K-band microwave sensor scans a room to minimize false alarms triggered by thermal interferences. Operating in conjunction with the PIR sensor, it uses microwave technology only for PIR sensor alarm verification. Unlike traditional X-band sensors, the K-band sensor offers superior energy efficiency and enhanced precision, resulting in significantly fewer false alarms. Additionally, the sensor is entirely safe and poses no harm to human health.

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

Fibra communication requires minimum power consumption, with the detector consuming only up to 0.086 W at its peak. This low power consumption allows installers to connect multiple devices to a single Fibra line, extending wired connectivity.

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.