Ajax DualCurtain Outdoor

General information

• Type: wireless bi-directional curtain motion sensor – suitable for perimeter protection outdoors (fence, window, corridor, etc.).

• Scanning range: adjustable for each party from 4-15 m (two “curtains”, up to ~30 m in total).

• Viewing angle: horizontal narrow ~4.5°, vertical wide (~90°)

Accuracy & false positives filter

• Four PIR sensors: two on each side, alarm only activated if both PIRs detect movement at the same time.

• ELSA algorithm: analyses signal shape, synchronicity and spectrum

Pet-friendly & Near-Zone

• Pet-immunity mode: ignores animals up to a height of 80 cm when correctly installed (from 0.8-1.3 m).

• Near-area detection: also detects movement directly under the device if necessary thanks to the inclined sensor view extension.

Sabotage protection and masking

• Anti-masking: detects objects in front of the sensor (<10 cm), masking, staining and overlapping – provides alarm notification.

• Tamper button: reports sabotage when removing the enclosure

Communication & security

• Communication: 868 MHz Ajax Jeweller protocol, AES encryption, frequency hopping; radio link range up to 1 700 m in open area.

• Response time: until the signal reaches the alarm centre <0,15 s.

Food & working time

• Batteries: 2 × CR123A, pre-installed; battery life up to 4 years

• No external lead: works only with batteries .

Housing and environmental conditions

• IP54 – dust and splash proof, suitable for rain/snow conditions but not for immersion in water.

• Operating temperature: -25 °C … +60 °C, humidity resistance up to 95 % .

Physical dimensions & installation

• Dimensions: 174 × 123 × 88 mm; weight: ~615 g .

• Installation height: 0.8-1.3 m (for doors/garden protection); ~0.5-0.6 m in front of windows – with inclined sensor .

• Adjustable settings: detection distance of each side, field of view shift ± 3°, near-zone on/off, sensitivity (3 levels) – all either in the app or on the panel behind the device.