Design smarter lighting and security zones with sensors. Enter room details and get placement points. Download results in PDF or CSV for crews onsite.
| Scenario | Length (m) | Width (m) | Mount (m) | Range (m) | Angle (deg) | Overlap | Obstructions | Typical Outcome |
|---|---|---|---|---|---|---|---|---|
| Open warehouse bay | 24 | 12 | 3.5 | 12 | 120 | 15% | 10% | Grid points with moderate overlap. |
| Long corridor | 40 | 3 | 3.0 | 10 | 110 | 20% | 15% | Centerline points, spaced along length. |
| Workshop with shelving | 18 | 10 | 3.2 | 9 | 100 | 25% | 30% | More points to cover blocked aisles. |
Open floor plans benefit from sensors that create detection zones. This calculator converts room dimensions and rated range into an estimated footprint, then applies overlap and obstruction allowances to avoid unprotected pockets. Use the spacing output as a grid, and keep sensor points centered within the usable area. When the space contains multiple activity zones, split the plan into rectangles and run the tool for each zone. Confirm edge coverage before final drilling and anchoring. Update approved installer drawings.
Long corridors and warehouse aisles work best with centerline placement. The tool switches to a corridor model so spacing follows the travel direction while staying centered across the width. Pay special attention to junctions, doorways, and turns where line of sight changes. If forklifts operate, consider slower approaches and wider coverage to reduce missed triggers at oblique angles.
Mount height influences sensitivity and tamper resistance. Higher mounts reduce interference but may reduce reliable detection if the lens is not rated for that height. For wall mounting, the calculator uses a sector footprint based on view angle, which highlights blind spots near corners. When using narrow angles, aim sensors slightly away from reflective surfaces and ensure the target path crosses detection zones.
Shelving, partitions, columns, and machinery reduce usable coverage. Increase obstruction allowance when the line of sight is frequently blocked, and add overlap when you need redundancy. False triggers often come from HVAC airflow, hot equipment, direct sunlight, or moving banners. Use the notes field to document known sources and confirm that chosen technology matches the environment.
After installing, perform a walk test along expected routes and confirm activation timing. Adjust sensor aim and delay settings to match the operational need, then rerun the calculator if the layout changes. Export CSV for markups and installation checklists, and save PDF results as part of the project closeout record.
No. Use it as a planning baseline, then confirm with a walk test. Real detection patterns vary by lens, height, and thermal conditions, so field validation is essential.
Many projects start around 10–25% overlap. Higher overlap helps at junctions and near obstructions, but increases device count. Adjust after a site survey and commissioning tests.
Estimate how much of the sightline is blocked by shelving, partitions, columns, or equipment. Light clutter may be 10–20%, while dense racking can reach 30–50%.
Wall mounting suits entrances, long approaches, and perimeter monitoring. It can leave corner blind spots, so check view angle and aim. Ceiling mounting usually provides more uniform coverage.
PIR detects heat changes, so slow or angled vehicle movement may be less reliable. Dual-technology options can improve performance in mixed traffic areas, especially near loading bays.
Plot them on your floor plan using the same origin point, then adjust for fixtures, beams, and access routes. Keep a short commissioning log, and export CSV/PDF for the crew.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.