Tech specs

DoorProtect Plus Fibra

Wired combined opening, shock, and tilt detector with two reed switches and accelerometer


Compatible hub models


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 protection.
  • Instant notifications.
  • Remote configuration via the Ajax apps.

Line connection

4-core cable

Fibra line length

up to 6,500 ft
When using the U/UTP cat.5 twisted pair.

Encrypted communication


Sensing element

1 × accelerometer
2 × reed switch
The magnet can be installed to the right or left side of the detector.

Opening sensors resource

up to 2,000,000
For each reed switch.

Additional detector connection

Wired detector with the normally closed (NC) contact type.

Shock sensor sensitivity

3 levels
Adjusted by PRO or user with admin rights in the Ajax app. The detection radius depends on the material type:
  • Framed glass window — 1.2 m (high sensitivity level), 1 m (low sensitivity level).
  • Wooden plate — 1.2 m (high sensitivity level), 1 m (low sensitivity level).
  • Concrete plate — 0.75 m (high sensitivity level), 0.5 m (low sensitivity level).

The smoother and cleaner the detection surface is, the better the detection radius is.

Option to ignore single shock

Enabled by PRO or user with admin rights in the Ajax app.

Tilt sensor activation threshold

from 5° to 25°
Adjusted by PRO or user with admin rights in the Ajax app.
Shock sensor sensitivity
Reed switch
Additional detector connection


Do not install the detector using both magnets at the same time.
The detector recognizes only one magnet on one side of the detector — left or right.
The device is designed for indoor use only.

Anti-sabotage protection

Tampering alarm

Alerts of attempts to detach the detector from the surface or remove the mounting panel.

Protection against forgery

Device authentication

Power supply

Detector’s operating voltage range

5−30 V⎓, up to 24 mW
The detector is powered by the control panel.

Detector’s nominal operating voltage

24 V⎓

Quiescent detector’s current consumption at nominal voltage

0.043 mA

Maximum detector’s current consumption at nominal voltage

1.55 mA



3.56″ × 0.83″ × 0.73″


1.90 oz

Operating temperature range

from 14°F to 104°F

Operating humidity

up to 75%

Protection class




Complete set

DoorProtect Plus Fibra
Big magnet
Small magnet
Installation kit
Quick Start Guide

Additional information

Compliance with standards


24 months

User manual