WatchOUT "Sentinel" Outdoor Detector (digital correlation technology used to rule out false positives from pets, reflections, and rapid temperature changes)
iWISE Pet Detector's "Detective" series of pet detectors (under the window area to prevent pets from alarms without losing the detection of intruders; 45kg dogs or 6 cats together can be exempted from the alarm)
The Zodiac "Planet" series of pet-proof detectors (with user-designed lenses and adaptive pet threshold (VPT) algorithms, provides protection against pets up to 32kg (70lb) dogs or 4 cats, while ensuring No missed detection performance.)
Wireless passive anti-pet detection technology used by detectors such as a pet monitor (which prevents a false alarm from a dog weighing 36 kg or 5 cats).
The unique Adaptive Pet Threshold algorithm (VPT) - coupled with specially designed Philippine pinch lenses - enables the detector to accurately distinguish intruders and pets while ensuring superior detection performance. The strength of the passive infrared signal is closely related to the rate at which the intruder passes through the detection area. An intruder's signal strength (B) crossing the detection area at a higher rate may be lower than the signal strength of a pet passing through the detection area at a lower rate (A), so if a fixed pet-proof threshold is used, it will Ignore intruders who pass through the detection area at higher frequencies and miss reports!
The adaptive pet threshold algorithm (VPT) selects the appropriate discrimination threshold by measuring the frequency of the traversal detection area, and perfectly solves the problem of missed and false alarms. This discrimination threshold is set at a level higher than the pet's signal strength and lower than the intruder's signal strength at any of the crossing frequencies to ensure that the intruder is detected while ignoring the pet, as shown in the following figure:
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