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AJAX MotionProtect Curtain (Black) – Narrow Beam Indoor Motion Detector Alarm System

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MPN: 22951.36.BL1 SKU: 22951.36.BL1 Categories: , , , Tag:
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AJAX MotionProtect Curtain (Black) – Narrow Beam Indoor Motion Detector Wireless Security Alarm System

Code: 22951.36.BL1

Ajax MotionProtect Curtain is a curtain type wireless motion detector alarm system. The detector has a narrow horizontal detection angle and is designed for indoor perimeter control: windows, doorways, and other entrances or exits of the guarded facility. Maximum motion detection distance is 15 m.

  • Narrow beam indoor motion detector. Protects windows, doors, and valuables.
  • Detects motion with a range of up to 15 meters.
  • Works up to 3 years on the pre-installed battery.
  • Transmits alarms at a distance of up to 1,700 meters away from the hub.

Functional elements:

AJAX MotionProtect Curtain (Black) - Narrow Beam Indoor Motion Detector Wireless Security Alarm System - Functional elements

  1. LED indicator.
  2. Motion detector lens.
  3. Hole for fixing the SmartBracket mounting panel with the bundled screw.
  4. QR code with the device ID. Used to connect to the Ajax security system.
  5. Button to turn on/off the device.
  6. Tamper button. Triggers when trying to tear off the detector from the surface or remove it from the mount.
  7. SmartBracket mounting plate. To remove the plate, slide it down.



Classification Radio-interlinked photoelectric security detector
Detector type
Colour Black
Indoors only
Motion detection distance Adjustable (from 6 to 15 meters)
Time for Motion Detection From 0.3 to 2 m/s
Compatibility Operates with all Ajax hubs, Range extenders
Sensing element Two PIR sensors
Detection angles
Horizontally- 6°
Vertically- 90°
Alarm signal delivery time
0.15 sec
Adjustable, 3 levels
Recommended installation height 2.4 meters
Power supply Batteries: CR123A, 3 V
Battery life Up to 3 years
Jeweller radio technology Communication range with detectors – up to 1,700 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 Frequency hopping
Temperature sensor
temperature range
From -10°С to +40°С
Operating humidity Up to 95%
Protection against fraud
Jamming detection
134 х 44 х 34 mm
Weight 118g
Protection class IP54
Complete set MotionProtect Curtain motion detector
SmartBracket mounting panel
CR123A batteries (pre-installed)
Installation kit
User’s guide


Secure Perimeter Protection

  1. At Home – Keep your house protected with MotionProtect Curtain detectors. Enjoy the freedom to move indoors without worry, as the system will instantly trigger an alarm and notify the security company in case of a break-in.
  2. In a Garage – Burglars will not be able to go unnoticed with MotionProtect Curtain in action. The curtain detector will continue to function even in harsh temperatures as low as -10°C.
  3. At a Museum – Visitors can leisurely view the exhibits without worry. The moment they cross the line and reach for an artwork, an alarm will sound, ensuring the safety of the collections.
  4. Pet-Friendly Apartments – Ensure the protection of your private property while keeping your pets ignored with the correct installation of MotionProtect Curtain.

Advanced Optical Technology

The MotionProtect Curtain has been designed with a state-of-the-art optical system, featuring two infrared sensors and a multifaceted mirror. This system provides twice the amount of information about the protected area and allows for an immediate response to human presence.

Instant Threat Response

Whether the intruder is running or attempting to be stealthy, MotionProtect Curtain is always on the lookout. As soon as they enter its view, the detector analyzes signals from both PIR sensors and sends an alert without delay.

Reliable Radio Communication

The MotionProtect Curtain connects to the hub through secure radio communication, with a range of up to 1,700 meters. The proprietary two-way communication protocol, Jeweller, protects data transmissions with advanced encryption. In case of interference or jamming, the Ajax security system automatically switches frequencies and alerts you and your designated alarm response company.

Quick 2-Minute Set-Up

AJAX MotionProtect Curtain (Black) - Narrow Beam Indoor Motion Detector Wireless Security Alarm System - Installation on Mount Bracket
Smart Bracket Mount installation
AJAX MotionProtect Curtain (Black) - Narrow Beam Indoor Motion Detector Wireless Security Alarm System - Installation on surface
Install on direct surface

The MotionProtect Curtain can be quickly connected to the security system via the Ajax app. Simply scan the QR code, add the detector to the room, and follow the installation process.

  • Convenient QR Code Connection
  • Easy installation with the SmartBracket mount or Direct surface (refer to image)
  • Configure and Test with the Mobile App

AJAX MotionProtect Curtain Detector Placement:

AJAX MotionProtect Curtain (Black) - Narrow Beam Indoor Motion Detector Wireless Security Alarm System - Detector Placement

When installing the detector, factor in both its detection range and beam width to ensure proper operation and avoid false alarms. Improper placement may result in a malfunction of the device.


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