Ajax Curtain Outdoor Jeweller
- Product Code: AJX-M-CO
- Brand: Ajax
Description

Curtain Outdoor Jeweller
Wireless dual-technology curtain motion detector for outdoor and indoor use
The first line of defense
Curtain Outdoor Jeweller is a motion detector for covering the perimeter with exceptional accuracy and a near-zero chance of false alarms. Featuring a unique optical system, the device looks over narrow sectors of up to 12 m long. Dual motion detection technology engaging two PIR sensors and one K-band microwave sensor allows filtering out false alarms caused by thermal interference. Adjustable detection range and sensitivity, as well as two operating modes, make the device a perfect fit for any site. Pre-installed batteries ensure stable performance for up to three years.
Discover Curtain Outdoor Jeweller
Wireless dual-technology curtain motion detector for outdoor and indoor use
Two operating modes
Curtain Outdoor Jeweller operates in two modes: regular and with pet immunity on. In the regular mode, any motion within the covered area triggers an alarm. The pet immunity mode is designed to ignore the movement of animals up to 100 cm tall and minimize false alarms.
Facility-specific motion detection
The device offers up to 12 m of detection range, which, however, can be adjusted to fit the peculiarities of a site. For example, the range can be set for the detector to cover doors and windows yet ignore high-traffic zones like a walkway. Detection sensitivity levels are also essential to limit false patrol dispatches. Set the sensitivity to low in areas prone to false alarms, medium for most sites, and high in obstacle-free zones where immediate threat detection is crucial.
- Flawless hardware
- Fresnel lens
- Two PIR sensors
- K-band microwave sensor
- Slider to change operating mode and detection range
- Jeweller and Wings antennas
- Tamper
- Hood
- Accelerometer
- Masking sensors
- SmartBracket mounting panel
- Holding screw
- Angle mount
Keep false alarms at bay
Two PIR sensors
Curtain Outdoor Jeweller has two PIR sensors to ensure accurate motion detection. The detector does not respond to a movement if only one sensor is triggered. When both sensors detect motion, proprietary digital algorithms come into play. In a fraction of a second, they perform a three-step signal analysis, filter out natural obstacles or animals, and decide whether an alarm should be raised.
K-band microwave sensor
Thermal interference filter
SmartDetect
Temperature compensation
Sensitivity level
Professional installation
Jeweller | Wings
Unique wireless technologies
- Up to 1,700 m of radio communication with a hub or range extender2
- Encrypted two-way radio communication
- Notifications of jamming and connection loss
- Over-the-air firmware updates
Communication through steel and concrete
Up to 5 range extenders within one system
Ethernet-equipped model available
- Large estate
- Business center with underground parking
- Metal hangar
- Industrial complex
System supervision
- Automatic device self-diagnosis with status report
- Regular polling to display the current device state on apps
- Instant maintenance notifications
Sabotage resistance
Tamper alarmThe enclosure is equipped with a tamper button, which notifies a security company and users once the detector is dismantled from the mounting panel.
AccelerometerWhen enabled, a built-in accelerometer alerts about sabotage. Sirens added to the system are activated when Curtain Outdoor Jeweller moves. The feature is crucial if a third-party mount is used. The accelerometer can detect if it is broken or if there are interferences with the detector’s field of view.
Anti-masking systemThe device detects masking caused by obstacles at a distance of up to 5 cm from the lens depending on the masking method used. The system notifies users and the ARC of these attempts to interfere with the detector’s operation.
Device authentication against spoofingThe hub checks the device's unique parameters for authentication during each communication session. If any parameter fails the check, the hub ignores device commands.
Data encryptionAll data the system stores and transmits is protected by block encryption featuring a dynamic key. This encryption deters intentional sabotage attempts on the detector.
Regular pollingThe device regularly exchanges data with the hub. The system controls each device state and reports if there is a malfunction.
Data-rich notificationsThe Ajax system instantly notifies of alarms and events with informative notifications: security companies and users know exactly which device triggered, when and where it happened.
Connection loss detectionWith minimal polling interval settings (3 data packages in 12 seconds), it takes 36 seconds to identify communication loss and notify the security company and users of the incident.







