Tech specs

DualCurtain Outdoor Jeweller

Wireless bidirectional curtain IR motion detector

DualCurtain Outdoor Jeweller


Jeweller communication technology

Proprietary wireless technology for transmission of alarms and events.
  • Two-way communication.
  • Advanced anti-sabotage.
  • Block encryption featuring a floating key.
  • Instant notifications.
  • Remote configuration via the Ajax apps.

Radio frequency bands

866.0–866.5 MHz
868.0–868.6 MHz
868.7–869.2 MHz
905.0–926.5 MHz
915.85–926.5 MHz
921.0–922.0 MHz
Depends on the region of sale.

Maximum effective radiated power (ERP)

up to 20 mW
Automatic power control to reduce power consumption and radio interference.

Radio signal modulation


Radio communication range

up to 5,570 ft
Between the detector and a hub (or radio signal range extender) in an open space.

Encrypted communication

All the data stored and transmitted are protected by block encryption with a floating key.

Frequency hopping

To prevent radio interference and jamming.


Sensitive elements

4 × IR sensor

Motion detection distance

13–49 ft for each side
When installed at a height of 2.6–4.3 ft. Adjusted separately for each side using sliders on the detector rear panel.

Viewing angles

horizontal — 4.5°
vertical — 90°

Motion detection speed

1–6.6 ft/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.


3 levels
Adjusted by a PRO or user with admin rights in the Ajax app.

Pet immunity

height: up to 2.62 ft
weight: irrelevant

Protection from false alarms

Software algorithms.

Temperature compensation

Effective motion detection at temperatures from −13°F to 140°F.


The detector is installed at a height of 2.6–4.3 ft 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 1.64–2 ft from the window sill.

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 3.9" (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

2 × CR123A battery
Up to 4 years of batteries life.



6.85 × 4.84 × 3.46"


21.7 oz

Operating temperature range

−13°F to 140°F

Operating humidity

up to 95%

Protection class




Complete set

DualCurtain Outdoor Jeweller
SmartBracket mounting panel
Installation kit
2 × CR123A battery
Quick start guide

Additional information

Compliance with standards


24 months

User Manual