Beam Detector Spacing Calculator
Design projected beam smoke detection per NFPA 72.
NFPA 72 Beam Detector Requirements
- Max spacing: 60 ft between beams (smooth ceiling)
- Max wall distance: 30 ft (half of spacing)
- Height: 4 in to 24 in below ceiling typical
- Compensate for stratification above 30 ft
- Consider beam path obstructions
- Auto-alignment recommended for long ranges