Digital temperature compensation
With this technology, the detector automatically adjusts the upper and lower alarm thresholds based on the external temperature. This allows it to cope with temperature changes and maintain alarm sensitivity. Digital temperature compensation outperforms the traditional method of adjusting the amplifier gain on the detector. Increasing an amplifier’s gain makes the device more susceptible to external interference from other devices, such as radios.
Animal-immune detection
Animals sometimes visit neighbors’ yards — occasionally at night for a moonlight walk. They are harmless to property, so the detector will not trigger an alarm in such cases. Animal-immune detection technology reduces false alarms caused by animals to a minimum. This makes Hikvision’s intrusion detector an ideal choice for families with pets or for places frequently visited by harmless wild animals.
Dual technology and tri-detection
Some detectors use PIR technology, which is effective at detecting living targets that emit body heat. Others use microwave technology to detect movement. By combining both technologies, the intrusion detector only sounds an alarm when both sensors are triggered — that is, when something is both alive and moving. Using this dual technology reduces the likelihood of false alarms.
Tri-detection refers to another multi-technology method: two PIR sensors and one microwave sensor must be triggered simultaneously for the alarm signal to be sent.
Anti-masking and anti-blocking
For planned burglaries or other incidents, intruders might cover or spray-paint detectors to mask them while the system is disarmed, then break in later knowing the system will not be triggered.
Anti-masking uses the microwave module to create a second microwave “bubble” that is always active and is used solely to prevent masking. The microwave bubble is adjustable between 0 and 1 meter, depending on the application, and detects attempts to mask the detector, relaying them to the control panel.
Anti-blocking is similar to anti-masking, but it monitors the entire field of view for any blockage. The detector sends an alert to the alarm panel if the field of view is obstructed by objects such as a car, a box, or a pallet.
