Ajax Motion Protect


Ajax Motion Protect is the back bone to your burglar alarm system and should be installed in all ground floor rooms.

10 in stock



The Ajax Motion Protect from Ajax Systems, the most awarded wireless security system in Europe, is a PIR Motion Detector that detects human presence by using a passive IR sensor & capable of recognising false alarms. The Ajax Motion Protect will automatically increase or decrease the sensor sensitivity in order to accurately detect motion during hot and cold weather.

The Ajax Motion Protect is the back bone of any burglar alarm system and should be installed in all ground floor rooms, at the very least all ground floor rooms with an external door.

Simplicity is key, the Ajax Motion Protect is ready to operate straight out of the box: the battery is already installed, meaning there is no need to disassemble the detector. With just one click, it can be connected to the hub in the smartphone app & can be mounted on the Smart Bracket in just a few minutes.

A required authentication means your system is prevented from forgery as well as including a tampering alarm, jamming detection and communication channels encryption.


The Ajax Motion Protect is simply but highly effective at detecting intruders and is  designed for both home and office installation. The Motion Protect can be installed in rooms with air conditioners, fireplaces and where there is a likelihood of light flickering, glare and reflections.

  • Authentication to prevent forgery
  • Jamming detection and communication channels encryption
  • Tampering alarm
  • Ignores cats and dogs with weight of up to 20 kg and height up to 50 cm
  • The additional microwave sensor filters possible interference from the air conditioner and curtain movement
  • Operates up to 5 years without battery replacement

Principle of operation

Detects human presence by temperature difference with background thermal radiation. The microwave sensor prevents false alarms caused by complex interference.


Designed for operation in rooms with fireplaces and air conditioners. Detects and ignores draughts, movement of curtains and blinds, and light flickering, glare and reflections.

Installation and set up

Ready to operate straight out the box. The battery is already installed inside, therefore there is no need to disassemble the detector. It can be mounted in just a few minutes using the Smart Bracket mount. If you would like further information please click here

Electro-optical combined radio channel security detector
Type of detector
Installation method
Sensing element
PIR sensor, microwave sensor (24 GHz)
Alarm signal delivery time
0.15 s
Motion detection distance
Up to 12 m
Detection angles
Horizontal — 88.5°
Vertical — 80°
Adjustable, 3 levels
Recommended installation height
2.4 m
Pet immunity
Weight — up to 20 kg
Height — up to 50 cm
Power supply
Battery: CR123A battery, 3 V
Battery life
Up to 5 years
Jeweller radio technology
Communication range with central unit — up to 1,200 m in an open space
Two-way communication between devices
Operating frequencies — 868.0-868.6 MHz
Self-adjusting RF output power — up to 20 mW
Block encryption based on AES algorithm
Detector polling period — 12−300 s
Temperature sensor
Operating temperature range
From -10°С to +40°С
Permissible humidity
Up to 75%

Protection against fraud
Jamming detection
Remote setting and testing
110 × 65 × 50 mm
96 g
Complete set

MotionProtect Plus motion detector
SmartBracket mounting panel
CR123A battery (pre-installed)
Installation set
User’s guide

Additional information