Double Knock: Send an alert to the panel if it’s triggered twice within a set time.
Cross Zone: Link with another zone, when both zones are triggered simultaneously, an alert is sent to the panel.
Passive Infrared Sensor: Detect the temperature difference between humans and objects.
Microwave Sensor: Using 24Ghz (K-band) Doppler effect to detect speed of movement, distance and motion.
PIRCAM (PIR detector with a photo camera to verify alarms)