Height & coverage table
Mounting height directly affects how much of the entrance the device can cover. Installing outside the recommended range will result in missed counts or inaccurate data.
Recommended mounting height
2.0m – 5.5m (6.5ft – 18ft) from the floor to the device.
This is the calibrated range for Avia's detection algorithms. Heights outside this range are not supported. If your ceiling exceeds 5.5m, use a wall mount at a lower point, or a mounting pole to reduce the installed height.
Height-to-coverage reference table
If a single device does not fully cover the entrance width at your installation height, install an additional device to achieve complete coverage. See Adding a second device to the same location.
Measuring the height correctly
The measurement method differs slightly depending on mount type:
Ceiling mount: Measure from the floor to the bottom of the device
Wall mount: Measure from the floor to the centre of the device
Use a measuring tape — do not estimate. Enter the value in metres in the Avia app during setup.
Placement rules
Device must face straight downward toward the floor (ceiling mount) or angled downward toward the entrance path (wall mount)
Centre the device over the walkable area of the entrance
Do not install at an angle sideways
Locations to avoid
Directly under bright or spotlights aimed at the floor — can interfere with detection
Facing reflective surfaces (mirrors, glass panels)
Near shelves, door frames, or metal obstructions that enter the field of view
Need help?
If you are not sure whether the installation height is suitable, contact Avia support at support@retailogists.com.
When contacting support, include:
Store name
Device serial number, if available
Planned installation height
Entrance width, if available
Photos of the entrance area
Photos of the ceiling or wall where the device may be installed