Description
Ajax DualCurtain Outdoor Jeweller Wireless Bidirectional Curtain Motion Detector – White (39055)
Protect the critical boundaries of your property with the Ajax DualCurtain Outdoor Jeweller (Model: 39055). This professional-grade, wireless outdoor security detector uses two independent, opposing optical systems to project narrow barrier beams left and right along building facades, windows, doors, and fences. Delivering an expansive total scanning profile of up to 30 metres (15 metres per side), it intercepts intruders long before they can physically enter the premises—all without creating obstacles for people already inside.
Housed in a streamlined, IP54 weatherproof alpine white casing, this dual-sided curtain sensor blends naturally onto contemporary structural pillars and building frameworks.
Key Features
- Independent Dual-Side Configuration: Each flank functions completely independently. You can seamlessly switch either side on or off, fine-tune separate sensitivity levels, or adjust the horizontal beam shift by 3° to safely avoid rustling garden vegetation or public footpaths.
- Patented Near Area Detection: Eliminates typical blind spots right underneath the device. Pushing the bottom beam downwards by a 40-degree sector ensures that anyone crawling along the building line or attempting to tamper with the sensor base triggers an instant alarm event.
- ELSA Smart False Alarm Filtering: Powered by Ajax's proprietary ELSA (Extended Live Signal Analysis) software algorithm. It performs a real-time digital comparison of the four tracking PIR sensors to instantly distinguish a genuine human break-in from shifting winds, heavy rain, or stray pets measuring up to 80 cm tall.
- Advanced Anti-Sabotage Shielding: Operates proactive, 24/7 Grade 2 anti-masking protection. The device triggers a warning to the hub instantly if its lenses are taped over, sprayed with paint, or covered. It also includes rear anti-dismantle tamper switches.
- Lightning-Fast Wireless Telemetry: Utilizes the secure Jeweller radio protocol to transmit encrypted block alerts over open spaces up to 1,700 metres away in just 0.15 seconds.
- 4-Year Autonomous Operation: Pre-installed with ultra-efficient lithium batteries that provide up to 4 years of hassle-free operation. Pairs to your system via QR code and mounts toollessly onto the secure SmartBracket slide plate.
Specifications
- Manufacturer Part Number (MPN): AJAX-39055-WHITE / 39055.81.WH1
- Colour: Alpine White
- Detection Sensor Array: 4 PIR Sensors (2 per independent side)
- Detection Range: Adjustable from 4 to 15 metres per side
- Enclosure Rating: IP54 Dust & Splash-Proof (operational from -25°C to +60°C)
- Central Hub Compatibility: Hub Plus, Hub 2, Hub 2 Plus, or ReX/ReX 2 extenders running OS Malevich 2.11 or higher (Note: Not compatible with original standard Hub 1)
- Compliance: Certified EN 50131 Grade 2 and PD 6662:2017 compliant
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