AJAX DoorProtect Plus manual | How to install AJAX DoorProtect Plus
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AJAX DoorProtect Plus Manual

Follow the steps in the manual and install the AJAX DoorProtect Plus yourself.

AJAX DoorProtect Plus manual

DoorProtect Plus is a wireless security device which detects opening, shocks, and tilting. It has a socket for connecting an external detector. DoorProtect Plus is connected to the Ajax security system via the protected Jeweller protocol, with an effective communication range of up to 1,200 meters without obstacles. Can operate up to 5 years from a pre-installed battery and is furnished with a sealed contact reed relay processing more than one million openings. It has a socket for connecting an external detector.

Sealed contact reed relay is a device which forms a continuous circuit under the effect of a constant magnet. It consists of ferromagnetic contacts placed in a bulb.

The detector is set up via a mobile application for iOS and Android-based smartphones. The user is notified of all events through push notifications, SMS messages and calls (if activated).

The Ajax security system is self-sustaining, but the user can connect it to the central monitoring station of a private security company.

Functional Elements

AJAX DoorProtect Plus Manual functional elements

1. DoorProtect Plus

2. Big magnet

3. Small magnet

4. Light indicator

5. SmartBracket attachment panel (perforated part is required for actuating the tamper in case of any attempt to tear off the detector from the surface. Don’t break it out!)

6. External detector connection socket

7. QR code

8. Device switch

9. Tamper button

DoorProtect Plus Operating Principle

DoorProtect Plus consists of the detector with a sealed contact reed relay, and a constant magnet. The detector is equipped with two magnets – small and big, with the magnet operation ranges of 1 and 2 cm accordingly. The detector is attached to a moving wing or sliding part and the magnet – to a frame. If the sealed contact reed relay is within the coverage area of the magnetic field, it closes the circuit – the detector is closed. The opening of the wing distances the magnet from the sealed contact reed relay, resulting in the circuit opening, and the detector records opening.

The detector may be positioned horizontally. If there is no need to detect opening with the sealed contact reed relay, please use only an electronics unit (without magnets) and disable the magnetic sensor in the settings.

Tilt detector detects the vertical deviation of the device relative to the initial position of more than 5°. DoorProtect Plus can be installed on windows including dormer windows, and the system can be armed, when they are in the airing mode (you should рreviously disable the magnetic sensor in the settings).

After actuation, the DoorProtect Plus detector set in the intrusion detection mode immediately transmits an alarm signal to the Ajax hub, activating the sirens connected to the hub and notifying the user and private security company.

Connecting the Detector to the AJAX Security System

Connecting the Detector to the Hub

Before starting connection:

1. Following the hub instruction recommendations, install the Ajax application on your smartphone. Create an account, add the hub to the application, and create at least one room.

2. Go to the Ajax application.

3. Switch on the hub and check the internet connection (via Ethernet cable and/or GSM network).

4. Ensure that the hub is disarmed and does not start updates by checking its status in the mobile application.

Only users with administrative privileges can add the device to the hub.

How to connect the detector to the Hub:

1. Select the Add Device option in the AJAX application.

2. Name the device, scan/write manually the QR Code (located on the body and packaging), and select the location room.

AJAX DoorProtect manual how to connect to the Hub

3. Select Add — the countdown will begin.

4. Switch on the device.

AJAX DoorProtect manual How to connect to the Hub

For the detection and interfacing to occur, the detector should be located within the coverage area of the wireless network of the hub (at a single protected object).

Request for connection to the hub is transmitted for a short time at the time of switching on the device.

If connection to the Ajax hub failed (LED blinks once per second), switch off the detector for 5 seconds and repeat the attempt.

The detector connected to the hub will appear in the list of devices of the hub in the application. Update of the detector statuses in the list depends on the device inquiry time set in the hub settings, with the default value – 36 seconds.

Values in the AJAX App

AJAX DoorProtect Plus manual application

AJAX DoorProtect Plus manual application

  Temperature: Temperature of the Detector. Measured on the processor and changes gradually

Signal Strength: Signal strength between the hub and the detector

Battery Charge: Battery level of the detector, displayed in increments of 25%

Lid: The tamper mode of the detector, which reacts to the detachment of or damage to the body

Delay when entering, sec: Delay time when entering

Delay when leaving, sec: Delay time when exiting

Connection: Connection status between the hub and the detector

Primary Detector: Primary detector status

Secondary detector: Status of the external detector connected to DoorProtect

Always Active: If active, the motion detector is always in the armed mode

Shock sensor: If active, DoorProtect Plus will detect the shock

Tilt sensor: If active, DoorProtect Plus will detect tilt angle changing

Firmware: Detector firmware version

Device ID: Device identifier


AJAX DoorProtect Plus manual settings 1

AJAX DoorProtect Plus manual settings 2

AJAX DoorProtect Plus manual settings 3

First field: Detector name, can be edited

Room: Selecting the virtual room to which the device is assigned

Arm in night mode: If active, the detector will switch to armed mode when using night mode

Primary Detector: If active, the DoorProtect Plus primary detector reacts to opening/closing

External contact enabled: If active, the detector registers external detector alarms

Shock sensor: If active, shock-sensor will detect alarm after more than one impact

Sensitivity: Sensitivity level of the shock sensor

Ignore simple impact: If active, single impact will be ignored

Tilt sensor: If active, sensor will detect tilt

Tilt: Selecting the normal angle of the sensor. Above this limit, the sensor detects an alarm

Tilt alarm delay: Selecting the tilt alarm delay

Always active: If active, the detector always registers opening/closing

Delay when entering, sec: Selecting delay time when entering

Delay when leaving, sec: Selecting delay time on exit

Delays in night mode: Delay turned on when using night mode

External Contact Type: Selecting the type of external wire detector

Time before alarm, sec (available for roller shutter motion detector only): The time in seconds during which a given number of impulses should be counted. This time is counted after the first impulse of the detector.

Impulses before alarm (available for roller shutter motion detector only): Number of detector impulses required to raise an alarm

Alert with a siren if opening detected: If active, HomeSiren and StreetSiren are activated when opening detected

Alert with a siren if an external contact is open: If active, HomeSiren and StreetSiren are activated during an external detector alarm

Alert with a siren if shock detected: If active, HomeSiren and StreetSiren are activated during a shock alarm

Alert with a siren if tilt detected: If active, HomeSiren and StreetSiren are activated during a tilt alarm

Signal Strength Test: Switches the detector to the signal strength test mode

Detection Zone Test: Switches the detector to the detection area test

Attenuation test: Switches the detector to the signal fade test mode (available in detectors with firmware version 3.50 and later)

User Guide: Opens the detector User Guide

Unpair Device: Disconnects the detector from the hub and deletes its settings

Detector operation indication

Turning on the detector: Lights up green for about one second    

Detector connection to the Hub: Lights up continuously for a few seconds    

Alarm / tamper activation: Lights up green for about one second (note: Alarm is sent once in 5 seconds)

Battery needs replacing: During the alarm, it slowly lights up green and slowly goes out (note: Replacement of the detector battery is described in the Battery Replacement paragraph)

Detector Testing

The AJAX security system allows conducting tests for checking the functionality of connected devices.

The tests do not start straight away but within a period of 36 seconds when using the standard settings. The test time start depends on the settings of the detector scanning period (the paragraph on “Jeweller” settings in hub settings).

Signal Strength Test

Detection Zone Test

Attenuation test

Device installation

Selection of the Detector Location

Location of the DoorProtect Plus detector determines its remoteness from the hub and the presence of any obstacles between the devices hindering the radio signal transmission: walls, inserted floors, large-size objects located within the room.

Check the signal level at the installation location.

If the signal level is one division, we cannot guarantee stable operation of the security system. Take possible measures to improve the quality of the signal! As a minimum, move the device – even 20 cm shift can significantly improve the quality of reception.

If, after moving, the device still has a low or unstable signal strength, use a radio signal range extender ReX.

The detector is located either inside or outside the door case (window frame).

When installing the detector in the perpendicular planes (inside the case/frame), use the small magnet from the set. The distance between the magnet and detector should not exceed 1 cm.

When positioning the parts of DoorProtect Plus in the same plane, use the big magnet. Its actuation threshold – 2 cm.

The magnet is attached to the moving part of the door (window) to the right of the detector. If necessary, the detector may be overturned or positioned horizontally.

AJAX DoorProtect Plus Manual magnet position

Installation of the Detector

Before installing the detector, make sure that you have selected the optimal location and it is in compliance with the guidelines contained in this manual!

AJAX DoorProtect Plus installation manual

1. Fix the SmartBracket attachment panels of the detector and magnet using bundled screws. If using any other attachment hardware, make sure that they do not damage or deform the panel.

The double-sided adhesive tape may be only used for temporary attachment of the detector and magnet. The tape will run dry in course of time, which may result in falling of DoorProtect and actuation of the security system. Furthermore, the device may fail from a hit.

2. Put the detector on the attachment panel. As soon as the detector is fixed in SmartBracket, it will blink with a LED – this will be a signal that the tamper on the detector is closed.

If the light indicator of the detector is not actuated after installation in SmartBracket, check the status of the tamper in the Ajax Security System application and then the fixing tightness of the panel.

If the detector is torn off from the surface or removed from the attachment panel, you will receive the notification.

3. Put the magnet on the attachment panel.

Do not install the detector:

  1. 1. outside the premises (outdoors)
  2. 2. nearby any metal objects or mirrors causing attenuation and screening of the signal
  3. 3. within any premises with the temperature and humidity beyond the range of permissible limits
  4. 4. closer than 1 m from the hub.

Connecting a Wire Detector

A wire detector with an NC type contact may be connected to the DoorProtect Plus using an outside-mounted terminal clamp.

AJAX DoorProtect Manual connecting a wire detector

We recommend to install the wire detector at a distance not exceeding 1 meter – increasing the wire length will increase the risk of its damage and reduce the quality of communication between the detectors.

To lead out the wire from the detector body, break out the plug:

AJAX DoorProtect manual break out the plug

If the external detector is actuated, you will receive the notification.

Detector Maintenance

Check the operational capability of the DoorProtect Plus detector on a regular basis.

Clean the detector body from dust, spider web and other contaminations as they appear. Use soft dry napkin suitable for equipment maintenance.

Do not use for cleaning the detector any substances containing alcohol, acetone, gasoline and other active solvents.

The service life of the detector from the battery depends on battery quality, the actuation frequency of the detector and inquiry interval of the detectors by the hub.

If the door opens 10 times a day and the detector inquiry interval is set at 60 seconds, then DoorProtect Plus will operate 7 years from the pre-installed battery. You will reduce the service life of the device to 2 years by setting the inquiry interval at 12 seconds.

If the detector battery is discharged, the user will receive a notice, and the LED will smoothly light up and go out if the detector or tamper is actuated.

How to change the batteries in the DoorProtect Plus

To change the battery:

1. Dismount the detector from the SmartBracket attachment panel.

2. Turn off the DoorProtect.

AJAX DoorProtect Plus manual change the battery

3. Unfasten the clamp and remove the front panel of the detector.

AJAX DoorProtect Plus manual remove the front panel

4. Change the battery for a new one of type CR123A, observing the polarity.

Never install used or damaged batteries.

5. Reattach the back panel of the detector.

6. Turn on the device and check the battery status using the app.

The battery status is not updated instantly but during the next polling of the devices (by default, every 36 seconds).

Complete Set

1. DoorProtect Plus

2. SmartBracket mounting panel

3. Battery CR123A (pre-installed)

4. Big magnet

5. Small magnet

6. Outside-mounted terminal clamp

7. Installation kit

8. Quick Start Guide

Tech Specs

Sensor: Sealed contact reed relay

Tilt sensor activation threshold: 5° or more (customizable)

Shock sensitivity: 3 Levels

Ignore first shock option: Yes

Detector actuation threshold: 1 cm (small magnet, 2 cm big magnet)

Tamper protection: Yes

Socket for connecting wire detectors: Yes, NC

Frequency band: 868.0 – 868.6 MHz or 868.7 – 869.2 MHz depending on the region of sale

Compatibility: Operates with Hub, Hub Plus, Hub 2, ReX

Maximum RF output power: Up to 20 mW

Modulation: GFSK

Radio signal range: Up to 1,200 m (any obstacles absent)

Power supply: 1 battery CR123A, 3 V

Battery life: Up to 5 years

Operating temperature range: From -10°С to +40°С

Operating humidity: Up to 75%

Dimensions: Ø 20 х 90 mm

Weight: 29 gram

Certification: Security Grade 2, Environmental Class I in conformity with the requirements of EN 50131-1, EN 50131-2-6, EN 50131-5-3

Any questions?

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