Motion Detector ALLNET ALL4452

The ALLNET ALL4452 is a wired passive infrared (PIR) motion detector in a compact aluminium desktop or wall-mount case. Designed for reliable presence and movement sensing, it offers a 92° detection angle and a maximum detection range of 8 meters. The robust metal housing with angle fixings allows secure wall installation while the small footprint makes it suitable for a variety of indoor and sheltered outdoor locations. The device supports an I2C bus for multiplexing, enabling multiple modules on a single line and wired RJ45 interfaces for integration into building automation systems.

Advantages

The aluminium housing provides mechanical protection and long service life, while the included bracket and angle fixings simplify wall mounting. A wide 92° detection angle and up to 8 m range cover medium-sized areas with a single sensor. The I2C multiplexing capability allows several detectors to share one communication line, reducing cabling complexity. Wired RJ45 interfaces ensure stable connectivity for integration with centrally managed home or building automation via network systems.

Suitable for

• Indoor and sheltered outdoor motion detection
• Integration into wired building or home automation networks
• Security and area monitoring of corridors, entrances and stairwells
• Applications requiring multiple sensors on one communication line (multiplexing)

Key specifications

• Model: ALLNET ALL4452
• Sensor type: Passive Infrared (PIR)
• Detection angle: 92°
• Maximum detection range: 8 m
• Housing: Aluminium, desktop / wall-mount with angle fixings
• Interfaces: 2x RJ45, I2C bus for multiplexing
• Dimensions (W×D×H): 50 × 79 × 24 mm (manufacturer data)
• MPN: ALL4452
• EAN: 4038816988409

How to use

Mount the ALL4452 on a flat surface or use the angle fixings to secure the aluminium bracket to a wall at the desired height and orientation. Connect the wired RJ45 interfaces to your building automation network and configure multiplexing on the I2C bus if multiple modules are used on the same line. Position the detector to cover the target area within its 92° field of view and up to 8 m range, avoiding direct exposure to heat sources or strong sunlight that could affect PIR performance. Follow local wiring and safety regulations when making network and power connections.

Recommendations

For reliable detection, mount the sensor at a moderate height with a clear view of the monitored area and avoid pointing it directly at heating elements, air vents or windows. When using multiple detectors on one I2C line, label connections and test each module after installation to confirm correct addressing and operation.