Choose a detector with a listed range that extends across the area you need to monitor, then account for room size, mounting height, obstacles, and likely motion paths. Select the coverage pattern based on the layout, such as 360-degree coverage for open spaces, a focused pattern for corridors or entry points, or a beam pattern for perimeter openings and long outdoor runs.

Passive infrared (PIR) detectors sense changes in infrared energy from people or animals moving through a coverage area, while ceiling-mounted detectors describe the installation position and often provide overhead or 360-degree coverage. Photoelectric beam detectors create an infrared beam across a boundary and send an alert when an object interrupts it, making them useful for perimeter or passageway monitoring.

Choose wired long-range motion detectors when your project has accessible cable pathways and calls for relay contacts, tamper connections, or adjustable sensing. Choose wireless long-range motion detectors when you need faster placement, ceiling or hard-to-reach installation, or less disruption from pulling cable, while confirming system compatibility and battery service requirements.

When installing long-range motion detectors indoors, consider the mounting height and location, the detector’s coverage pattern, walls or other obstructions, ambient temperature, lighting, pets, and the available wired or wireless connection. For outdoor installations, evaluate line of sight, beam alignment, weather exposure, sunlight, vegetation, tamper protection, and the surface available for secure mounting, then select a detector designed for the intended environment.