Other intrusion detectors
Magnetic switch intrusion detector
Interior passive glass-break detector
Vibration intrusion detector
Combined microwave and passive infrared intrusion detecto
Interior microwave Doppler detector
Interior passive infrared detector
Active infrared intrusion detector
Positive pressure protection, “pD”
Encapsulation protection, “niD”
Enclosure protection, “tD”
Intrinsically safe, “D”