DoorProtect Plus

Wireless opening, shock, and tilt detector


jeweller-logoJeweller communication technology

Proprietary wireless technology to transmit alarms and events.

  • Two-way communication.
  • Advanced anti-sabotage.
  • Block encryption featuring a dynamic key.
  • Instant notifications.
  • Remote configuration via the Ajax apps.

Radio frequency bands

866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz

Depends on the sales region.

Maximum effective radiated power (ERP)

up to 20 mW

Radio signal modulation


Radio communication range

up to 3,900 ft

Between the detector and a hub (or radio signal range extender) in an open space.

Encrypted communication

All the data stored and transmitted are protected by block encryption with a dynamic key.

Frequency hopping

To prevent radio interference and radio signal interception.


Sensitive elements

1 × accelerometer
1 × reed switch

The magnet should be installed to the right of the detector.

Maximum number of openings

up to 2,000,000

For each reed switch.

Additional detector connection

Third-party wired detector with the NC (normally closed) contact type.

Shock sensitivity

3 levels

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

Option to ignore single shock

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

Tilt sensor activation threshold

from 5° to 25°

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


The magnet is mounted to the right of the detector. It can be placed horizontally. Do not install the detector with the LED indicator facing down, as this may cause it to fall and fail due to damage. Device is designed for indoor use only.

Anti-sabotage protection

Tamper alarm

Notifications of attempts to tear off the detector from the surface or remove it from the mounting panel.

Protection against spoofing

Device authentication

Power supply

1 × CR123A battery

Up to 5 years of battery life.



0,79″ × 3,54″


1.02 oz

Operating temperature range

from 14°F to 104°F

Operating humidity

up to 75%

Protection class





Complete set

DoorProtect Plus Jeweller
SmartBracket mounting panel
CR123A battery (pre-installed)
Big magnet
Small magnet
Terminal to connect a third-party detector
Installation kit
Quick Start Guide

Additional information

Compliance with standards


24 months