CombiProtect User Manual


CombiProtect is a device combining a wireless motion detector with the viewing angle of 88.5° and distance up to 12 meters, as well as a glass break detector with the distance up to 9 meters. It can ignore animals and detects a person within the protected zone from the first step. It can operate for up to 5 years from a pre-installed battery and is used inside premises.

CombiProtect operates within the Ajax security system, connected to the hub via the protected Jeweller protocol. The communication range is up to 1200 meters in the line of sight. In addition, the detector can be used as a part of third-party security central units via the Ajax uartBridge or Ajax ocBridge Plus integration modules.

The detector is set up via a mobile application for iOS and Android based smartphones. The system notifies user 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 combiprotect
  1. LED indicator
  2. Motion detector lens
  3. Microphone hole
  4. SmartBracket attachment panel (perforated part is required for actuating the tamper in case of any attempt to dismantle the detector)
  5. Tamper button
  6. Device switch
  7. QR code

Operating Principle

CombiProtect combines two types of security devices – motion detector and glass break detector.

Thermal PIR sensor detects intrusion into a protected room by detecting moving objects with a temperature close to the temperature of the human body. However, the detector can ignore domestic animals if the suitable sensitivity has been chosen in the settings.

The electret microphone is responsible for glass break detection. The intelligent event registration system requires a sequence of sounds of a specific nature – first dull blow, then ringing sound of falling chips, which prevents accidental actuation.

CombiProtect does not detect glass breaking if the glass is covered with any film: shockproof, sunscreen, decorative or other. In order to detect the breaking of this type glass, we recommend using a DoorProtect Plus wireless opening detector with shock and tilt sensor.

After actuation, the armed detector immediately transmits an alarm signal to the hub, activating the sirens and notifying the user and security company.

To arm Ajax security system (including Ajax CombiProtect detector) you can use Ajax Security System app, SpaceControl key fob or KeyPad.

If before arming the system, the detector has detected motion, it will not arm immediately, but during the next inquiry by the hub.

Connecting the Detector to the Ajax security system

The detector is connected to the hub and set up via the Ajax Security system mobile application. To establish connection please locate the detector and the hub within the communication range and follow the device adding procedure.

Before starting connection:

  1. Following the hub manual recommendations, install the Ajax application. Create an account, add the hub to the application, and create at least one room.
  2. Switch on the hub and check the internet connection (via Ethernet cable and/or GSM network).
  3. Ensure that the Hub is disarmed and does notupdateby checking its status in the mobile application.

Only users with administrator rights can add the device to the hub

How to connect the detector to the hub:

  1. Select the Add Device option in the Ajax app.
  2. Name the device, scan/write manually the QR Code (located on the body and packaging), and select the location room.
    ajax motionprotect plus combirprotect
  3. Select Add — the countdown will begin.
  4. Switch on the device.
    ajax motionprotect plus combiprotect

For detection and pairing to occur, the detector should be located within the coverage 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, switch off the detector for 5 seconds and retry.

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.

Connecting the Detector to Third Party Security Systems

To connect the detector to a third party security central unit using the uartBridge or ocBridge Plus integration module, follow the recommendations in the manual of the respective device.


  1. Devices
  2. CombiProtect
TemperatureTemperature of the detector. Measured on the processor and changes gradually
Jeweller Signal StrengthSignal strength between the hub and the detector
Battery ChargeBattery level of the detector, displayed in increments of 25%
LidThe tamper mode of the detector, which reacts to the detachment of or damage to the body
Delay when entering, secDelay time when entering
Delay when leaving, secDelay time when exiting
Routed through ReXDisplays the status of using the ReX range extender
Motion Detector SensitivitySensitivity level of the motion detector
Motion Detector Always ActiveIf active, the motion detector is always in the armed mode
Glass Protection SensitivitySensitivity level of the glass detector
Glass Protection Always ActiveIf active, the glass detector is always in the armed mode
FirmwareDetector firmware version
Device IDDevice identifier

Setting Up the Detector

  1. Devices
  2. CombiProtect
  3. Settings
First fieldDetector name, can be edited
RoomSelecting the virtual room to which the device is assigned
Delay when entering, secSelecting delay time when entering
Delay when leaving, secSelecting delay time on exit
Delays in night modeDelay turned on when using night mode
Arm in night modeWhen turned on, the detector will switch to armed mode when using night mode
Motion DetectorIf active, motion detector will be active
Motion Detector SensitivityChoosing the sensitivity level of the motion detector:

  • High
  • Normal
  • Low
Motion Detector Always activeIf active, the detector always registers motion
Glass Break DetectorIf active, glass breaking detector will be active
Glass Protection SensitivityChoosing the sensitivity level of the glass detector:

  • High
  • Normal
  • Low
Glass Protection Always ActiveIf active, the detector always registers glass breaking
Alert with a siren if motion detectedIf active, HomeSiren and StreetSiren are activated when the motion detected
Alert with a siren if glass break detectedIf active, HomeSiren and StreetSiren are activated when the glass break detected
Jeweller Signal Strength TestSwitches the detector to the signal strength test mode
Detection Zone TestSwitches the detector to the detection area test
Attenuation TestSwitches the detector to the signal fade test mode (available in detectors with firmware version 3.50 and later)
User GuideOpens the detector User Guide
Unpair DeviceDisconnects the detector from the hub and deletes its settings


Turning on the detectorLights up green for about one second
Detector connection to the hub, ocBridge Plus and uartBridgeLights up continuously for a few seconds
Alarm / tamper activationLights up green for about one secondAlarm is sent once in 5 seconds
Battery needs replacingDuring the alarm, slowly lights up green and goes offReplacement of the detector battery is described in the Battery Replacement manual

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 time of the start depends on the settings of the detector polling period (the paragraph on “Jeweller” settings in the hub settings).

Jeweller Signal Strength Test

Detection Zone Test

  • Glass break detection zone Test
  • Motion detection zone Test

Attenuation Test

Installing the detector

Selection of the installation site

The controlled area and the efficiency of the security system depends on the location of the detector.

The device developed only for indoor use.

Location of the CombiProtect depends on the 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 at one bar, we cannot guarantee stable operation of the security system. Take all 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 direction of the detector lens should be perpendicular to the probable way of intrusion into the room. The detector microphone should be positioned at the angle of no more than 90 degrees relative to the window.

Make sure that any furniture, domestic plants, vases, decorative or glass structures do not block the field of view of the detector.

We recommend installing the detector at the height of 2.4 meters.

ajax motionprotect plus combirprotect

If the detector is not installed at the recommended height, this will reduce the area of the motion detection zone and impair the operation of the function of ignoring animals.

ajax motionprotect plus combiprotect

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

CombiProtect detector can be attached to a vertical surface or in a corner.

ajax motionprotect plus combiprotect
  1. Attach the SmartBracket panel to the surface using bundled screws, using at least two fixing points (one of them – above the tamper). If you select other attachment hardware, make sure that they do not damage or deform the panel.

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

  2. Put the detector on the attachment panel. When the detector is fixed in SmartBracket, it will blink with an 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 tamper mode in the Ajax Security System app 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.

Do not install the detector:

  1. outside the premises (outdoors);
  2. in the direction of the window, when the detector lens is exposed to direct sunlight;
  3. opposite any object with the rapidly changing temperature (e.g., electrical and gas heaters);
  4. opposite any moving objects with the temperature close to that of the human body (oscillating curtains above the radiator);
  5. opposite any reflective surfaces (mirrors);
  6. at any places with fast air circulation (air fans, open windows or doors);
  7. nearby any metal objects or mirrors causing attenuation and screening of the signal;
  8. within any premises with the temperature and humidity beyond the range of permissible limits;
  9. closer than 1 m from the hub.

Detector Maintenance

Check the operational capability of the CombiProtect 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. Wipe the lens very carefully and gently – any scratches on the plastic may cause reduction of the detector sensitivity.

The pre-installed battery r ensures up to 5 years of autonomous operation (with the inquiry frequency by the hub of 3 minutes). If the detector battery is discharged, the security system will send respective notices and the LED will smoothly light up and go out, if the detector detects any motion or if the tamper is actuated.

To change the battery, switch off the device, loosen three screws and remove the front panel of the detector. Change the battery for a new one of type CR123A, observing the polarity.

Battery Replacement

Tech Specs

Sensitive elementPIR sensor (motion)
electret microphone (glass break)
Motion detection distanceUp to 12 m
Motion detector viewing angles (H/V)88.5° / 80°
Pet immunity

Yes, weight up to 20 kg, height up to 50 cm

Why motion detectors react to animals and how to avoid it >

Glass break detection distanceUp to 9 m
Microphone coverage angle180°
Tamper protectionYes
Frequency band868.0 – 868.6 MHz or 868.7 – 869.2 MHz depending on the region of sale
CompatibilityOperates with Hub, Hub PlusHub 2ReXocBridge Plus, uartBridge
Maximum RF output powerUp to 20 mW
Radio signal modulationGFSK
Radio signal rangeUp to 1,200 m (any obstacles absent)
Power supply1 battery CR123A, 3 V
Вattery lifeUp to 5 years
Installation methodIndoors
Operating temperature rangeFrom -10°С to +40°С
Operating humidityUp to 75%
Overall dimensions110 × 65 × 50 mm
Weight92 g
CertificationSecurity Grade 2, Environmental Class II in conformity with the requirements of EN 50131-1, EN 50131-2-7-1, EN 50131-2-2, EN 50131-5-3

Complete Set

  1. CombiProtect
  2. SmartBracket mounting panel
  3. Battery CR123A (pre-installed)
  4. Installation kit
  5. Quick Start Guide


Warranty for the “AJAX SYSTEMS MANUFACTURING” LIMITED LIABILITY COMPANY products is valid for 2 years after the purchase and does not apply to the pre-installed 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: [email protected]

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