Perimeter Beam Calculator
Active infrared beam pairs draw an invisible tripwire along your boundary. Enter the perimeter length, the beam pair’s rated range, the corners and gates, and a weather derate to see how many beam pairs and towers guard the line — and the effective range once fog and monsoon are factored in. Planning figures; runs in your browser.
- Straight-run pairs (perimeter ÷ eff. range)3
- Extra for corners (line-of-sight breaks)+ 4
- Extra for gates (gaps in the run)+ 1
- Total beam pairs8
Planning estimate only — rated ranges are line-of-sight maxima that fog, rain and heat-haze cut down, and terrain, slopes and vegetation change what a single beam can actually cover. For life-safety or boundary-dispute lines, confirm the alignment on site and verify against the product datasheet and a site test.
Related Guides — Deep-dive reading
Perimeter Beam Sensors in India (2026): Invisible Trip-Lines Along the Boundary
How stacked active-infrared and laser photo-beams strung between towers along a wall, gap or long straight run raise the alarm the moment someone crosses the boundary — and how to place them so fog, birds and foliage do not.
SecurityBeam Sensors in India (2026): Active-Infrared Perimeter Detection for Gates, Walls and Farmhouse Boundaries
How active-infrared beam sensors work, where they earn their place on Indian plots, single-beam versus multi-beam towers, and how to tame the outdoor false-alarm problem with sound design.
SecurityPerimeter Alarm Systems in India (2026): Detect an Intruder at the Boundary
How an outer detection layer — outdoor motion sensors, beam barriers, fence and wall-top sensors and gate contacts — warns you the moment someone crosses your compound wall, and how to design it for Indian weather without endless false alarms.
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