Install corner sensors high in a room corner or where a wall meets the ceiling, aimed across the space so the detection area covers the main movement paths. For hallways, entryways, and other indoor areas, place the sensor where it can view approaching traffic while avoiding obstructions, direct sunlight, heating or cooling vents, and sources of unwanted motion.

Corner sensors mount where two walls meet, providing angled coverage across a room while keeping the device discreet and useful in spaces where ceiling mounting is impractical. Ceiling-mounted sensors can provide broader overhead coverage, while flat-wall sensors offer flexible placement along a wall, so the best option depends on the room layout, detection area, and available mounting surface.

Check whether the corner sensor works with your control platform, alarm panel, or lighting devices, and confirm support for the required connection type, such as wireless RF communication or a wired alarm relay. For wireless models, verify the sensor’s protocol or frequency, required hub or panel, communication range, and any line-of-sight or through-wall limits before installation.

When choosing corner sensors, compare passive infrared detection coverage and range, mounting options, wireless or wired installation, sensitivity adjustments, and features such as tamper detection or pet immunity. Also confirm compatibility with the security panel, lighting controls, or home automation platform, along with battery requirements, communication method, and whether the sensor supports alarm notifications, occupancy control, or motion-based routines.