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 factory-assembled 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.
Not compatible with the Ajax uartBridge or Ajax ocBridge Plus
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.
- DoorProtect Plus
- Big magnet
- Small magnet
- Light indicator
- SmartBracket attachment panel (perforated part is required for actuating the tamper in case of any attempt to tear off the detector from the surface)
- External detector connection socket
- QR code
- Device switch
- Tamper button
DoorProtect Plus Operating Principle
DoorProtect Plus consists of two parts: the detector itself 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 cm 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 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
For the detector to start working within the Ajax security system, it needs to be connected to the Ajax Hub. This will require an Ajax account, a device with Internet access and the Ajax Security System application, as well as a room for placing the detector, created within the application.
The device may only be added if the Ajax security system is disarmed.
- Open a room in the mobile application or web application and select the option "Add a device".
- Give an arbitrary name to the detector, read out scan the QR code (or insert the ID manually), select a location room and go to the next step.
- When the application starts searching for a device and launches countdown, switch on the detector - it will blink once with an LED.
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 the 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.
||Temperature of the Detector. This is measured on the processor and changes gradually
||Signal strength between the Hub and the detector
||Battery level of the detector, displayed in increments of 25%
||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 status between the hub and the detector
||Primary detector status
||Status of the external detector connected to DoorProtect Plus
||When turned on, the detector is always in the armed mode
||State of the shock sensor (on/off)
||State of the tilt sensor (on/off)
||Detector firmware version
Setting Up the Detector
DoorProtect Plus settings are centred in the menu:
Devices → DoorProtect Plus → Settings [⚙️]
||Detector name, can be edited
||Selecting the virtual room to which the device is assigned
|Arm in night mode
||When turned on, the detector will switch to armed mode when using night mode
||When turned on, the DoorProtect Plus primary detector reacts to opening/closing
|External contact enabled
||When turned on, the detector registers external detector alarms
||If active, sensor will detect impact
||Sensitivity level of the shock sensor
|Ignore simple impact
||If active, single impact will be ignored
||If active, sensor will detect tilt
||Selecting the normal angle of the sensor. Above this limit, the sensor detects an alarm
|Tilt alarm delay
||Selecting the tilt alarm delay
||When turned on, 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
|Alert with a siren if opening detected
||When turned on, HomeSiren and StreetSiren are activated when opening detected
|Activate the siren if an additional contact is open
||When turned on, HomeSiren and StreetSiren are activated during an external detector alarm
|Активировать сирену если зафиксирован удар
||Когда включено, сирены HomeSiren и StreetSiren включаются при детектировании удара
|Активировать сирену если зафиксирован наклон
||Когда включено, сирены HomeSiren и StreetSiren включаются при детектировании изменения угла наклона
|Signal Strength Test
||Switches the detector to the signal strength test mode
|Detection Zone Test
||Switches the detector to the detection area test
||Switches the detector to the signal fade test mode (available in detectors with firmware version 3.50 and later)
||Opens the detector User Guide
||Disconnects the detector from the Hub and deletes its settings
Selection of the Detector Location
Location of the DoorProtect detector determines its remoteness from the hub and 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.
Do not install the detector:
- outside the premises (outdoors)
- nearby any metal objects or mirrors causing attenuation and screening of the signal
- within any premises with the temperature and humidity beyond the range of permissible limits
The magnet is attached to the right of the detector. 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 in the same plane, use the big magnet. Its actuation threshold - 2 cm.
Having defined the location, fix the detector and magnet with a double-sided adhesive tape and check the operation of the device using the detection zone test:
While in the test mode, the DoorProtect light indicator lights continuously, however switching off for a second, if the detector is actuated. Check correct operation of the device by opening/closing the wing several times.
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.
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:
If the external detector is actuated, you will receive the respective notice.
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!
- Fix the SmartBracket attachment panels of the detector and magnet using factory-made 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 Plus and actuation of the security system. Furthermore, the device may fail from a hit.
- 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.
- Put the magnet on the attachment panel.
Detector Maintenance and Battery Replacement
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 will operate 7 years from the factory-assembled 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 down if the detector or tamper is actuated.
|Detector actuation threshold
||1 cm (small magnet)
2 cm (big magnet)
|Tilt sensor activation threshold
||5° or more (customizable)
|Ignore first shock option
||868.0 – 868.6 MHz or 868.7 – 869.2 MHz depending on the region of sale
|Maximum RF output power
||Up to 20 mW
|Modulation of the radio signal
|Radio signal range
||1,200 m (any obstacles absent)
|Socket for connecting wire detectors
||1 battery CR123A, 3 V
||Up to 5 years
|Operating temperature range
From -10°С to +40°С
For other regions:
From +5°С to +40°С
||Up to 80%
||Ø 20 х 90 mm
- Battery CR123A (factory-set)
- Big magnet
- Small magnet
- Outside-mounted terminal clamp
- Installation kit
- Quick Start Guide
Warranty for the Ajax Systems Inc. devices is valid for 2 years after the purchase and does not apply to the supplied battery.
If the device does not work correctly, you should first contact the support service—in half of the cases, technical issues can be solved remotely!
Technical support: firstname.lastname@example.org