GlassProtect Fibra

Wired glass break detector


Compatible hub models Hub Hybrid (2G) Hub Hybrid (4G)

Compatible range extenders Range extenders with Fibra devices support will be soon added to the Ajax product line


Fibra communication technology

Proprietary wired communication technology. Fibra combines the reliability of wires with the freedom of radio connection. It features:

  • Two-way communication.
  • Advanced anti-sabotage.
  • Instant notifications.
  • Remote configuration via the app.

Learn more

Bus connection 4-core cable

Encrypted communication

Bus line length up to 2,000 meters When using the U/UTP cat.5 twisted pair.


Sensing element 1 × electret microphone

Glass break detection distance up to 9 meters

Glass break detection angles horizontal — 180° vertical — N/A

Sensitivity 3 levels Sensitivity can be adjusted by PRO or user with admin rights in an Ajax app.

False alarm prevention Two-factor glass break verification software algorithm: by low and high frequencies.

Glass break detection angles


Device is designed for indoor use only.

Anti-sabotage protection

Tampering alarm Alerts of attempts to detach the detector from the surface. Learn more

Protection against forgery Device authentication

Power supply

Fibra line power supply 24 V⎓, up to 45 µA The detector is powered by the control panel.


Dimensions 90.5 × 21 × 18.5 mm

Weight 54 g

Operating temperature range from −10°C to +40°C

Operating humidity up to 75%

Protection class IP50



Complete set

GlassProtect Fibra Installation kit Quick Start Guide

Additional information

Compliance with standards Learn more

Warranty 24 months Learn more

User manual Learn more

Spelling error report

The following text will be sent to our editors: