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DualCurtain Outdoor.
Wireless outdoor bidirectional curtain motion detector

Standards and certifications
DualCurtain Outdoor Jeweller · DCO.Y.J. Manufacturer-listed marks; regional and installation conditions apply.
Protect both sides of an outdoor boundary.
DualCurtain Outdoor Jeweller watches in two opposite directions, creating narrow detection zones along a facade or perimeter. Each side can be adjusted to the area it needs to cover. This helps protect approaches to windows and entrances while keeping detection focused on the boundary around the building.
Key features. At a glance.
Up to 30 m1
combined perimeter coverage
4.5°
horizontal viewing angle on each side
Four infrared sensors
ELSA analyses two sensors per side
Independent sides
Set distance and direction for each boundary
Near-area detection2
Reduce the blind spot close to the enclosure
Anti-masking
Detects obstacles, covered lenses and paint
IP54 · −25°C to +60°C
Designed for outdoor perimeter protection
Up to 4 years3
on two replaceable CR123A batteries
Up to 1,700 m4
communication range in open space
Encrypted communication
Jeweller radio with device authentication
Tamper and connection alerts5
Reports removal and loss of communication
Configuration in the Ajax app
Set sensitivity and test the installed device
- 1Each side adjusts independently from 4 to 15 m. Actual coverage must be tested on site.
- 2Near-area detection significantly reduces pet immunity close to the detector. Use it only for routes animals cannot access.
- 3Battery life varies with use, settings, temperature and radio conditions.
- 4Walls, metal and other obstacles reduce actual radio coverage.
- 5Connection-loss detection depends on polling settings.
Ajax product information ↗ · DualCurtain Outdoor Jeweller specifications ↗
DualCurtain Outdoor Jeweller
Every detail has a purpose.
Explore the function, installation and system requirements of DualCurtain Outdoor Jeweller.
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A perimeter watched in both directions.

Protect the boundary, keep the inside usable
Two narrow detection zones run away from the enclosure in opposite directions. They can guard windows, gates or a facade while leaving space outside those zones free for normal movement.
Each side adjusts from 4 to 15 m, giving up to 30 m combined coverage. Confirm both routes with detection-zone tests.
Two sensors verify movement on each side.

ELSA signal analysis
The ELSA algorithm analyses both infrared sensors in the same optical system. An alarm requires them to detect a matching human movement pattern.
Cover the route close to the detector.

Near-area detection
An additional sector points 40° downwards to reduce the blind spot close to the enclosure. Enable it separately on the relevant side when protecting a suitable window or passage.
Set each side for its own boundary.

Detection distance
Adjust each side’s range using the rear controls. Keep the zone away from moving vegetation or a public path that does not belong inside the protected perimeter.
A monitored view and mounting point.

Anti-masking, tamper and connection checks
Masking sensors detect covering, paint or obstacles near the optics. The tamper reports removal, while regular hub communication helps reveal a disconnected detector.
Allow masking sensors to calibrate with the detection area clear, then test both sides. Lost-connection timing depends on polling settings.
Long-term operation at the boundary.

Two replaceable CR123A batteries
The preinstalled batteries support up to four years under the manufacturer’s stated conditions. Battery state and low-battery notifications are available in the app.
The enclosure is rated IP54 for operation from −25°C to +60°C. Battery life varies with use, settings and the environment.
A secure link to your system.
Jeweller communication
Jeweller provides two-way radio communication with a compatible Ajax hub or range extender. Encryption and device authentication help protect the exchange of alarms, commands and status.
Up to 1,700 m in open space. Check signal strength at the actual mounting point: walls, metal and other obstacles reduce usable range.
Install it for the place it protects.

Pair
Scan the device QR code in the Ajax app, then give it a clear name and assign its room. Check compatibility and the radio-frequency region before pairing.
Find the right motion detector.
Compare indoor, outdoor and curtain detectors across Baseline and Superior. See what changes for the place you protect, alarm photos, animals and installation.
Compare motion detectors →Every detail, in one place.
Communication
- Jeweller communication technology
- Two-way system communication for the functions specified for this model.
- Radio communication range
- up to 1,700 m Between the detector and a hub (or radio signal range extender) in an open space.
- Encrypted communication
- Encrypted device communication.
- Frequency hopping
- To prevent radio interference and jamming.
Detection
- Sensitive elements
- 4 × IR sensor
- Motion detection distance
- 4–15 m for each side When installed at a height of 0.8 to 1.3 m. Adjusted separately for each side using sliders on the detector rear panel.
- Viewing angles
- horizontal — 4.5°; vertical — 90°
- Motion detection speed
- 0.3 to 2.0 m/s The direction of the detector lens should be perpendicular to the intended path of entry into the facility.
- Near zone detection
- When enabled, the detector's upper IR sensor receives an additional sector of view, directed at an angle of 40° downward of the main sector.; This is necessary to detect motion near the detector and reduce blind spot.; Adjusted separately for each side using sliders on the detector rear panel.
- Viewing angle shift
- When enabled, the optical system viewing angle can be shifted by 3° in the horizontal plane.; Adjusted separately for each side using sliders on the detector rear panel.
- Sensitivity
- 3 levels Adjusted by a PRO or user with admin rights in the Ajax app.
Anti-sabotage protection
- Tampering alarm
- Alerts of attempts to detach the detector from the surface or remove the mounting panel.
- Protection against spoofing
- device authentication
- Anti-masking system
- DualCurtain Outdoor Jeweller detects the following types of masking: Obstacles in front of the detector's lenses at a distance of up to 10 centimeters (depends on the material).; Painting over the detector's lenses.; Taping the lenses or the detector's sides.
- Lost connection detection
- from 36 s The time to detect the communication loss depends on the Jeweller (or Jeweller/Fibra) settings.
Power supply
- Power supply
- 2 × CR123A battery; Up to 4 years of batteries life.
Enclosure
- Dimensions
- 174 × 123 × 88 mm
- Weight
- 615 g
- Operating temperature range
- −25°C to +60°C
- Operating humidity
- up to 95%
- Protection class
- IP54
What’s in the box
- DualCurtain Outdoor Jeweller
- SmartBracket mounting panel
- Installation kit
- 2 × CR123A battery
- Pre-installed.
- Quick start guide
For your installation
- Confirm the supported control panel, device software and regional radio version; test coverage at the final installation position.
- The detector is installed at a height of 0.8–1.3 meters from ground level when used to protect doors, arches, other passages, or the area in front of windows. Otherwise, if the detector is used to protect windows, it is installed at a height of 0.5–0.6 meters from the window sill.

