Ajax Curtain Outdoor (Jeweller) – Dual-PIR Narrow-Angle Outdoor Motion Detector (White, 9NA)

Product Overview

The Ajax Curtain Outdoor Jeweller (SKU: 101442.289.WH3, 9NA region frequency) is a specialized narrow-angle outdoor wireless motion detector designed to create an invisible infrared curtain barrier around property perimeters. Engineered to protect building facades, windows, doors, garage entrances, and perimeter fence lines, it detects intruders crossing the boundary while allowing people and pets to move freely inside or outside the protected perimeter without triggering false alarms.

Featuring a dual optical system with two independent PIR sensors and proprietary DualCurtain / ELSA correlation processing algorithms, it filters out thermal disturbances, swaying trees, and domestic animals. Communicating over the secure Jeweller encrypted radio protocol up to 1,700 meters (5,500 ft) in open space, Curtain Outdoor delivers instant 0.15 s alarm signaling, Grade 3 active anti-masking protection, an IP55 weather-resistant enclosure, and up to 3 years of autonomous battery life on pre-installed CR123A lithium batteries in a clean matte white finish.

Key System Features & Functionality

• Narrow Curtain Detection Optical System: Focused 6° horizontal and 90° vertical detection beam creates an impenetrable perimeter curtain line up to 12 meters (40 ft) long.

• Dual PIR Sensors with ELSA Processing: Digital correlation algorithm compares signals from both optical sensors simultaneously to distinguish real intruders from pets, swaying foliage, or thermal drafts.

• Grade 3 Active Anti-Masking System: Continuously monitors for attempts to block, paint over, tape, or spray the optical lenses, triggering an immediate sabotage alarm to the CMS.

• IP55 Weatherproof Architecture: Sealed, UV-resistant housing with integrated protective hood operates reliably against driving rain, snow, dust, and direct sunlight from -25°C to +60°C.

• Encrypted Jeweller RF Link: Two-way encrypted radio communication operating up to 1,700 meters (5,500° ft) open-space with anti-jamming frequency hopping.

• Long Autonomous Battery Operation: Powered by two pre-installed CR123A lithium batteries delivering up to 3 years of maintenance-free perimeter security.

• Sabotage & Tamper Defense: SmartBracket mounting base includes an integrated tamper switch that reports unlatching or dismounting immediately to the Ajax app and CMS.