Safety measures
Environment (working)
Burglar alarms
Grades (quality)
Crime prevention devices
Alarm systems
Classification systems
Environmental testing
Anti-burglar measures
Safety devices
Performance testing
Warning devices
Security systems in buildings
Detectors
Infrared radiation
Link: BS EN 50131-2-2:2017 Alarm systems. Intrusion and hold-up systems Intrusion detectors. Passive infrared detectors
Source: BSI Standards
