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📘 MotionProtect Curtain User Manual

MotionProtect Curtain is a “blind” type outdoor motion detector, equipped with two PIR sensors. It detects motion up to 11 meters away, while protecting against masking and ignoring pet movement. It is connected to the Ajax security system via Jeweller protected protocol, with a transmission distance of up to 1,700 meters without obstacles. The detector operates up to 3 years with the bundled battery. It can be installed outdoors.

MotionProtect operates within the Ajax security system, by connecting via the protected Jeweller protocol to the hub.

⚠️ The detector only operates with hub. Connection to ocBridge and uartBridge integration modules is not provided.

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.

👉 Buy outdoor curtain motion detector MotionProtect Curtain

Functional Elements

  1. Light indicator
  2. Detector light filter
  3. Masking sensors
  4. Aperture for installing SmartBracket panel with a screw
  5. QR Code
  6. “On” button
  7. Tamper button
  8. SmartBracket attachment panel (the perforated part is needed in order for the tamper function to work when attempting to pull the detector away from a surface)

Operating Principle

When the system is armed, the sensor continuously monitor signals from two PIR sensors. When motion is detected, the sensor instantly transmits an alarm to the hub and signals by blinking green LED. MotionProtect Curtain sends an alarm to the hub only if identical motion signals are detected with two PIR sensors.

When pet immunity is not activated, the MotionProtect Curtain detects motion up to 11 m away and sends an alarm even when only one of the two PIR sensors is activated.

Alarm by motion transmitted once per 5 seconds.

Thermal PIR sensor of MotionProtect detects intrusion into a protected room by detecting moving objects whose temperature is close to the temperature of the human body. At that, the detector can ignore domestic animals - you only need to set up the suitable sensitivity and turn on pet-immunity option in the settings.

The sensor can ignore animals at a distance:

Distance from the sensor
Little birds (sparrow)
From 1 meter from the sensor
Large birds (crow)
From 1.5 meters from the sensor
Cats and dogs
From 2 meters from the sensor

⚠️ When the pet immunity feature is turned on, the motion detection range of the detector decreases depending on the sensitivity level.

Motion detection range when pet-immunity is turned on
Motion detection range when pet-immunity is turned off
Up to 3 m
Up to 9 m
Up to 5 m
Up to 10 m
Up to 6 m
Up to 11 m

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

If before setting the system in the armed mode the detector has detected motion, it will not set in the armed mode immediately, but during the next inquiry by the hub.

Anti-masking system

Masking is an attempt to block the view of the sensor lens in any way.

MotionProtect Curtain detects next types of masking:

  • Obstacle in front of the sensor light filter
  • Painting or sticking light filters with opaque material filters
  • Applying a spray paint / paint or brushing the front of the MotionProtect Curtain

If one or more types of masking are detected, the sensor generates a masking alarm, and the green LED on the sensor lights up for 1 second.

The sensor detects masking in both active and passive mode.

Connecting the device 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 in armed mode 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 a 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.

  3. Select Add — the countdown will begin.
  4. Switch on the device by pressing power button for 3 seconds.

For the detection and interfacing to occur, the device 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.

MotionProtect Curtain turns off automatically after 6 seconds, if it failed to connect to the hub. To retry the connection, you do not need to turn off the device.

If the device was already assigned to another hub, switch off MotionProtect Curtain, then perform the standard adding procedure.

The MotionProtect Curtain 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.


Devices→ MotionProtect Curtain


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%
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
Sensitivity level of the motion sensor: Low, Normal, High
It active, the detector will ignore pets weighing up to15 kg and up to 40 cm tall when installed at a height of 2.4 m.
If active, sensor will detect masking
Always Active
If active, the motion detector always detects movement
Detector firmware version
Device ID
Device identifier


Devices→ MotionProtect Curtain → Settings (⚙️)


First field
Detector name, can be edited
Selecting the virtual room to which the device is assigned
Choosing the sensitivity level of the motion sensor:
  • High
  • Normal
  • Low
If active, sensor will detect masking
It active, the detector will ignore pets weighing up to15 kg and up to 40 cm tall when installed at a height of 2.4 m.

In this case, the motion detection range is reduced to 6 m at high sensitivity, to 5 m at medium sensitivity, and to 3 m at low sensitivity. Please consider this when installing the detector.

When pet immunity is not activated, the MotionProtect Curtain detects motion up to 11/10/9 m (depending on the sensitivity level) away and sends an alarm even when only one of the two PIR sensors is activated.
Always active
If active, the detector always registers motion
Delay when entering, sec
Selecting delay time when entering
Delay when leaving, sec
Selecting delay time on exit
Arm in night mode
If active, the detector will switch to armed mode when using night mode
Delays in night mode
Delay turned on when using night mode
Alert with a siren if motion detected
If active, HomeSiren and StreetSiren are activated when the motion detected
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 Manual
Opens the detector User Guide
Unpair Device
Disconnects the detector from the hub and deletes its settings


MotionProtect Curtain light indicator may light up red or green depending on the device status.

Indication When Pressing the “On” button

Pressing the power button (detector is switched on)
Lights up red while the button is held down
Switching on
Lights up green while the device is switching on
Switching off
Initially lights up red, then blinks three times

Turned-on detector indication

Detector connection to the hub
Lights up green for a few seconds

Hardware error
Blinks red continuously
The detector requires repair, please contact Support Service
Motion, tamper alarm or masking detected
Lights up green for about one second

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

Functionality 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).

Selection of the Detector Location

⚠️ Do not install black MotionProtect Curtain where the direct sunlight can hit the device. This may cause malfunctioning of the detector.

It is recommended to use MotionProtect Curtain to protect windows, doorways, fences and other entrances/exits of the protected building.

It is not recommended to install the detector with pet immunity switched off:

  • Outdoor.
  • Close to heating and ventilation systems.
  • In places where the detector may be exposed to direct sunlight.
  • In premises with pets.
  • And in other places containing potential sources of false alarms.

The area of the controlled territory and, consequently, the efficiency of the security system depends on the location of the detector. When choosing the installation site for MotionProtect Curtain, consider the orientation of the light  filters and obstacles that may impair vision and the passage of the radio signal.

⚠️ Consider the motion detection range.

If possible, avoid the situations where the detector identifies movement at a greater distance than required. Roads with moving cars, a neighbor's yard and other external territories not meant to be protected by the security system but located within the detector's range may lead to false alarms.

For example, to control the window install the detector in the window opening.

MPC.jpgLocation of the MotionProtect Curtain 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.

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

It is advisable that the direction of the detector lens sight is perpendicular to the probable way of breaking into the room.

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. 

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.

Do not install the detector:

  • In front of moving objects with a temperature close to the human body temperature (moving blinds above a radiator).
  • Near places with fast circulation of hot air (ventilation system outputs, exhausts, electric convection heaters with automatic 'on' function or automatic rotation).
  • In front of bodies of water, swimming pools, fountains and other surfaces that reflect sunlight.
  • In front of trees and bushes.
  • Near metal objects and mirrors (they can interfere with the RF signal and cause it to fade).

Keep in mind that MotionProtect Curtain does not detect motion through glass. Therefore, do not install detectors where their field of view may be obstructed by glass structures. For example, in places where an open window can block the view of a device.

When installing outdoors, the detector shall be installed with the light filter down!

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!

The detector should be installed at the site invisible to observers, if possible. This reduces the likelihood of sabotage by an intruder.  

If the light filter of the installed detector faces upwards (to ignore large pets), it is recommended to switch off the pet immunity function.

There are two options for installing MotionProtect Curtain: 

  • directly on a surface 
  • or on the bundled bracket.

  1. Using the bundled screws or other equally reliable fasteners, attach the SmartBracket panel or bracket on the surface. The SmartBracket attachment panel is fixed to the bracket using screws.
  2. Place the detector on the SmartBracket attachment panel.
  3. If the antimasking function is enabled, wait until the calibration is completed.
  4. Mount the detector on the SmartBracket attachment panel using a screw.

Masking sensor calibration begins automatically when the MotionProtect Curtain is mounted on the attachment panel. For correct calibration ensure that there is no motion within 30 cm from the detector for 30 seconds, when the LED indicator stops blinking.

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.

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.

⚠️ A detection zone test is required after the detector is installed. Relocate the detector in case of its incorrect operation.

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

Detector Maintenance and Battery Replacement

Check the operational capability of the MotionProtect Curtain 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 battery installed in the detector ensures up to 3 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 lights up and goes out if the detector detects any motion or if the tamper is actuated.

Battery replacement

Tech specs

PIR sensor, 2 pcs
Detection angles of the motion detector (D/H)
Installation method
Black—indoors only
Motion detection distance
Up to 11/10/9 m (when pet immunity is active —  up to 6/5/3 m depending on device settings)
Pet ignoring option
Yes, for pets up to 15 kg and 40 cm tall (when the detector is installed vertically at a height of 2.4 m)
Masking protection
Tamper protection
Yes, to detect removal and integrity damage to the body case.
Frequency band
868.0 – 868.6 MHz
RF signal strength
Up to 20 mW
Radio signal modulation
Radio signal range
Up to 1700 m (where there are no obstacles)
Power supply
1 battery CR123A, 3 V
Battery life
Up to 3 years
Operating temperature range
From -25°С to +60°С
Protection class
Overall dimensions
134 х 44 х 36 mm
118 g

Complete Set

  1. MotionProtect Curtain
  2. Battery CR123A (pre-installed)
  3. Installation kit
  4. Bundled Bracket
  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!

👉🏻 The full text of the warranty

👉🏻 User Agreement

Technical support:

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