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

Functional Elements

  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.

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 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 not update by 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.
  3. Select Add — the countdown will begin.
  4. Switch on the device.

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
Parameter Value

Temperature of the detector. Measured on the processor and changes gradually.

Acceptable error between the value in the app and the room temperature — 2°C.

The value is updated as soon as the detector identifies a temperature change of at least 2°C.

You can configure a scenario by temperature to control automation devices

Learn more

Jeweller Signal Strength Signal strength between the hub and the detector
Battery Charge

Battery level of the device. Displayed as a percentage

How battery charge is displayed in Ajax apps

Lid The tamper mode of the detector, which reacts to the detachment of or damage to the body
ReX Displays the status of using a radio signal range extender
Motion Detector Sensitivity Sensitivity level of the motion detector
Motion Detector Always Active If active, the motion detector is always in the armed mode
Glass Detector Sensitivity Sensitivity level of the glass detector
Glass Detector Always Active If active, the glass detector is always in the armed mode
Permanent Deactivation Shows the status of the device deactivation function:

  • No — the device operates normally and transmits all events.
  • Lid only — the hub administrator has disabled notifications about triggering on the device body.
  • Entirely — the device is completely excluded from the system operation by the hub administrator. The device does not follow system commands and does not report alarms or other events.
  • By number of alarms — the device is automatically disabled when the number of alarms is exceeded (specified in the settings for Devices Auto Deactivation). The feature is configured in the Ajax PRO app.
Alarm Reaction
Operating Mode Shows how the detector reacts to alarms:

  • Instant Alarm — the armed detector immediately reacts to a threat and raises the alarm.
  • Entry/Exit — when a delay is set, the armed device starts the countdown and doesn’t raise the alarm even if triggered until the countdown ends.
  • Follower — the detector inherits the delays from Entry/Exit detectors. However, when the Follower is triggered individually, it immediately raises the alarm.
Delay When Entering, sec Delay time when entering
Delay When Leaving, sec Delay time when exiting
Firmware Detector firmware version
Device ID Device identifier

Setting Up the Detector

  1. Devices
  2. CombiProtect
  3. Settings
Setting Value
First field Detector name, can be edited
Room Selecting the virtual room to which the device is assigned
Alarm LED indication

Allows you to disable the flashing of the LED indicator during an alarm. Available for devices with firmware version or higher

How to find the firmware version or the ID of the detector or device?

Motion Detector If active, motion detector will be active
Motion Detector Sensitivity Choosing the sensitivity level of the motion detector:

  • High
  • Normal
  • Low

Why motion detectors react to animals and how to avoid it

Motion Detector Always Active If active, the detector always registers motion
Glass Detector Enabled If active, glass breaking detector will be active
Glass Protection Sensitivity Choosing the sensitivity level of the glass detector:

  • High
  • Normal
  • Low
Glass Protection Always Active If active, the detector always registers glass breaking
Alert with a siren if motion detected If active, sirens added to the system are activated when the motion detected
Alert with a siren if glass break detected If active, sirens added to the system are activated when the glass break detected
Alarm Reaction
Operating Mode Specify how this device will react to alarms:

  • Instant Alarm — the armed detector immediately reacts to a threat and raises the alarm.
  • Entry/Exit — when a delay is set, the armed device starts the countdown and doesn’t raise the alarm even if triggered until the countdown ends.
  • Follower — the detector inherits the delays from Entry/Exit detectors. However, when the Follower is triggered individually, it immediately raises the alarm.
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
Arm in Night Mode When turned on, the detector will switch to armed mode when using night mode
Jeweller 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)
Permanent Deactivation

Allows the user to disconnect the device without removing it from the system.

Two options are available:

  • Entirely — the device will not execute system commands or participate in automation scenarios, and the system will ignore device alarms and other notifications
  • Lid only — the system will ignore only notifications about the triggering of the device tamper button

Learn more about permanent deactivation of devices

The system can also automatically disable devices when the set number of alarms is exceeded.

Learn more about auto deactivation of devices

User Guide Opens the detector User Guide
Unpair Device Disconnects the detector from the hub and deletes its settings


Event Indication Note
Turning on the detector Lights up green for about one second
Detector connection to the hub, ocBridge Plus and uartBridge Lights up continuously for a few seconds
Alarm / tamper activation Lights up green for about one second Alarm is sent once in 5 seconds
Battery needs replacing During the alarm, slowly lights up green and goes off Replacement of the detector battery is described in the Battery Replacement manual

Detector Testing

The Ajax 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.

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 combiprotect
ajax combiprotect

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 combiprotect
ajax 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.

  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 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.

How long Ajax devices operate on batteries, and what affects this

Battery Replacement

Complete Set

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


Warranty for the Limited Liability Company “Ajax Systems Manufacturing” 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]

Need help?

In this section you’ll find detailed manuals and educational videos about all features of Ajax. And in case you need help of a technical specialist, we’re available 24/7.

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