AJAX R743.19 Motion Protect Plus User Manual

AJAX R743.19 Motion Protect Plus User Manual & troubleshooting

AJAX R743.19 Motion Protect Plus User Manual
AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 1

MotionProtect is a wireless motion detector designed for indoor use. It can operate for up to 5 years from an in-built battery, and monitors the area within 12-meter radius. MotionProtect ignores animals, while recognizes a human from the first step.

MotionProtect Plus uses radio frequency scanning along with a thermal sensor, filtering interference from thermal radiation. Can operate up to 5 years from an in-built battery

Buy motion detector with microwave sensor MotionProtect Plus

MotionProtect (MotionProtect Plus) operates within the Ajax security system, connected to the hub via the protected Jeweller protocol. The communication range is up to 1700 (MotionProtect Plus 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 the Ajax app for iOS, Android, macOS and Windows. The system notifies user of all events through push notifications, SMS and calls (if activated).

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

Buy motion detector MotionProtect

Functional Elements

  1. LED indicator
  2. Motion detector lens
  3. SmartBracket attachment panel (perforated part is required for actuating the tamper in case of any attempt to dismantle the detector)
  4. Tamper button
  5. Device switch
  6. QR code
    AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 2

Operating Principle

Thermal PIR sensor of MotionProtect detects intrusion into protected room by detecting moving objects whose temperature is 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.

When the MotionProtect Plus detects motion, it will additionally carry out radio frequency scanning of the room, preventing false actuation from thermal interferences: air flows from sunheated curtains and louvre shutters, operating thermal air fans, fireplaces, air conditioning units, etc.

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 Security System

Connecting the Detector to the hub

Before starting connection:

  1. Following the hub manual recommendations, install the . Create an account, add the hub to the application, and create at least one room.
    Ajax application
  2. Switch on the hub and check the internet connection (via Ethernet and/or GSM network).
  3. Make sure that the hub is disarmed and does not update by checking its status in the app.

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 3 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 application.
  2. Name the device, scan/write manually the QR Code (located on the body and packaging), and select the location room.
    AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 4
  3. Select Add — the countdown will begin.
  4. Switch on the device.

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 5
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 moment of switching on the device.

If the detector failed to connect to the hub, switch off the detector for 5 seconds and retry.

The connected detector will appear in the devices list in the application. Update of the detector statuses in the list depends on the device inquiry time set in the hub settings(default value is 36 seconds)

Connecting the Detector to Third Party security systems

To connect the detector to a third party security central unit with the uartBridge or ocBridge Plus integration module, follow the recommendations in the manuals of these devices.


  1. Devices AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 6
  2. MotionProtect | MotionProtect Plus
Parameter Value


Temperature of the Detector. Measured on the processor and changes gradually
Jeweller Signal Strength Signal strength between the hub and the detector
Connection Connection status 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


The tamper mode of the detector, which reacts to the detachment of or damage of the body
Delay When Entering, sec Delay time when entering
Delay When Leaving, sec Delay time when exiting
ReX Displays the status of using the ReX range extender
Sensitivity Sensitivity level of the motion sensor
Always Active If active, the motion detector is always in the armed mode
Temporary Deactivation Shows the status of the device temporary 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.
Firmware Detector firmware version
Device ID Device identifier


  1. Devices AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 7
  2. MotionProtect | MotionProtect Plus
  3. Settings AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 8



First field Detector name, can be edited
Room Selecting the virtual room to which the device is assigned
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 If active, the detector will switch to armed mode when using night mode
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?

Sensitivity Choosing the sensitivity level of the motion sensor.

For MotionProtect:

  • High — for premises with a minimum amount of obstacles, motion is detected as quickly as possible
  • Medium — for premises with potential obstacles (windows, air conditioner, heating element, etc)
  • Low — ignore pets weighing up to 20 kg and up to 50 cm tall

For MotionProtect Plus:

  • High — the detector disregards cats (under 25 cm)
  • Medium — disregards small dogs (under 35 cm)
  • Low — disregards animals under 50 cm.


Always active If active, the detector always registers motion
Alert with a siren if motion detected If active, sirens added to the system are activated when the motion detected
Jeweller Signal Strength Tes Switches the detector to the signal strength test mode
Detection Zone Test Switches the detector to the detection area test
Attenuation Tes Switches the detector to the signal attenuation test mode (available in detectors with firmware version 3.50 and later)
Temporary 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 temporary 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 User Guide
Unpair Device Disconnects the detector from the hub and deletes its settings

Before using the detector as a part of the security system, set up the suitable sensitivity level.

Switch the Always Active if the detector is located in a room requiring 24-hour control.
Regardless of whether the system is set in the armed mode, you will receive notices of any detected motion.

If any motion is detected, the detector activates the LED for 1 second and transmits an alarm signal to the hub and then to the user and central monitoring station (if it is connected).

Detector operation indication

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 and goes off green Replacement 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 immediately 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 Strenght test

Detection zone test 

Attenuation test

Device installation

Selection of the Detector Location

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

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 9 The device developed only for indoor use.

Location of MotionProtect 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.
AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 10

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 11 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 the
ReX radio signal range extender.

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 12 The direction of the detector lens should be perpendicular to the probable way of intrusion 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.

Why motion detectors react to animals and how to avoid it

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 13

Installation of the Detector

AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 14 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 R743.19 Motion Protect Plus User Manual  & troubleshooting 15

The Ajax MotionProtect detector (MotionProtect Plus) should be attached to a vertical surface or in the corner.
AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 16

  1. Attach the SmartBracket panel to the surface using bundled screws, using at least two fixing points (one of them – above the tamper). After selecting other attachment screws, make sure that they do not damage or deform the panel
    AJAX R743.19 Motion Protect Plus User Manual  & troubleshooting 17 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, hitting can damage the device.
  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 LED indicator of the detector is not actuated after installation in SmartBracket, check the Ajax Security System application status of the tamper in the 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 (you can install MotionProtect Plus)
  3. opposite any object with the rapidly changing temperature (e.g., electrical and gas heaters) (you can install MotionProtect Plus)
  4. opposite any moving objects with a temperature close to that of the human body (oscillating curtains above the radiator) (you can install MotionProtect Plus)
  5. at any places with fast air circulation (air fans, open windows or doors) (you can install MotionProtect Plus)
  6. nearby any metal objects or mirrors causing attenuation and screening of the signal
  7. within any premises with the temperature and humidity beyond the range of permissible limits
  8. closer than 1 m from the hub.

Detector Maintenance

Check the operational capability of the Ajax MotionProtect detector on a regular basis.

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

Do not use any substances containing alcohol, acetone, gasoline and other active solvents for cleaning the detector. 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 lights up and goes out, if the detector detects any motion or if the tamper is actuated.

How long Ajax devices operate on batteries, and what affect the battery Replacement

Tech specs

Sensitive element PIR sensor

(Motion Protect Plus: PIR and microwave sensor)

Motion detection distance Up to 12 m
Motion detector viewing angles (H/V) 88,5° / 80°
Time for motion detection From 0.3 to 2 m/s
Pet immunity Yes, height up to 50 cm, weight up to 20 kg Why motion detectors react to animals and how to avoid it >
Tamper protection Yes
Frequency band 868.0 – 868.6 MHz or 868.7 – 869.2 MHz, depending on the sales region
Compatibility Operates with all Ajax hubs, range extenders, ocBridge Plus, uartBridge
Maximum RF output power Up to 20 mW
Modulation of the radio signal GFSK
Radio signal range Up to 1700 m (any obstacles absent) (Motion Protect Plus up to 1200 m) Learn more
Power supply 1 battery CR123A, 3 V
Battery life Up to 5 years
Installation method Indoors
Operating temperature range From -10°С to +40°С
Operating humidity Up to 75%
Overall dimensions 110 × 65 × 50 mm
Weight 86 g (Motion Protect Plus – 96 g)
Service life 10 years
Certification Security Grade 2, Environmental Class II in conformity with the requirements of EN 50131-1, EN 50131-2-2, EN 50131- 5-3 (Motion Protect Plus – EN 50131-1, EN 50131-2-4, EN 50131-5-3)

Complete Set

  1. MotionProtect (MotionProtect Plus)
  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!

The full text of the warranty 

User Agreement

Technical support: [email protected]


Setting up AJAX R743.19 Motion Protect Plus User Manual is easy with these step-by-step instructions. Follow the steps are you are set-up in no time.

Using AJAX R743.19 Motion Protect Plus User Manual is simple by using this manual. Follow the instructions one by one and everything will be fine

Is AJAX R743.19 Motion Protect Plus User Manual stuck or not working properly? By resetting it you can set it back to the standard settings and everything should be back to normal. This works in many cases when problems arise.

This page contains the complete user instructions & manual for AJAX R743.19 Motion Protect Plus User Manual

All symbols, colors and codes for AJAX R743.19 Motion Protect Plus User Manual are explained in this instruction manual. You can find everything you need and moree