Ajax DualCurtain Outdoor

General Info

• Type: wireless bidirectional curtain motion sensor – suitable for perimeter protection in outdoor conditions (garden, window, corridor, etc.)

• Detection range: adjustable 4–15 m for each side (two “curtains”, up to ~30 m total)

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

Accuracy & False Alarm Filter

• Four PIR sensors: two on each side, alarm activates only when both PIRs detect motion simultaneously

• ELSA algorithm: analyzes signal shape, synchronization and spectrum

Pet-Friendly & Near-Zone

• Pet-immunity mode: ignores animals up to 80 cm tall when properly installed (0.8–1.3 m height)

• Near-area detection: if needed, detects motion right below the device thanks to tilted sensor view extension

Sabotage Protection and Masking

• Anti-masking: detects objects in front of sensor (<10 cm), covering, painting and obscuring – sends alarm

• Tamper button: reports sabotage when housing is removed

Communication & Security

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

• Response time: signal to alarm center < 0.15 s .

Power & Operating Time

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

• No external power: operates on batteries only .

Housing and Environmental Conditions

• Protection class: IP54 – dust and splash resistant, suitable for rain/snow conditions, but not for submersion in water .

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

Physical Dimensions & Installation

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

• Installation height: 0.8–1.3 m (for door/fence protection); ~0.5–0.6 m in front of windows – with tilted sensor .

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