Infrared alarm, motion detector

Start by considering the coverage area and mounting needs. For example, a model with 360° detection and an 8 m diameter detection area offers broad room surveillance, while a 2-year warranty provides confidence in reliability over time. Also check the voltage options—ceiling-mounted versions often suit 220–240V installations for seamless integration.

360° detection means the sensor watches all around its axis, capturing movement from every direction for complete room coverage. This is especially helpful at entryways or living areas where intruders can approach from multiple angles, reducing blind spots and improving overall security.

Yes. Some infrared devices are designed for lighting control, including 12V–24V variants and 3-pin interfaces for easy integration with LED strips or lighting circuits, enabling automatic turn-on when motion is detected.

Warranty options vary by model. A reputable motion sensor like the Legrand unit typically includes a 2-year warranty, while other generic options may offer shorter terms such as 30-day warranties. Always review the warranty terms for the exact item you select.

Ceiling-mount sensors are commonly installed high on walls or ceilings to maximize field of view. Typical ranges include around 6 meters with a 360° detection pattern, which helps monitor larger rooms or hallways without creating dead zones.

Motion detectors sense movement to trigger actions like lights or alarms, whereas obstacle-avoidance sensors detect physical obstacles to prevent collisions in automation or robotics projects. The former is suited for security, the latter for navigation and safe operation of automated systems.

Yes, there are budget-friendly infrared detectors that offer essential motion sensing with practical warranties (often around 30 days), making them a sensible entry point for basic security setups while you assess your longer-term needs.