AQUA Plus is a digital passive infrared detector provided with
a dual element PIR sensor and digital motion detection algorithm. Owing to
the two-track analysis of the signal from the PIR sensor (valuable and
quantitative) and the temperature compensation feature, the device is
characterized by high sensitivity and interference immunity. Interchangeable
Fresnel lens and three-step sensitivity control make it possible to adjust the
device performance to the user requirements. The detector has a built-in
tamper switch to protect it against opening the enclosure. In addition, the
device PCB is provided with EOL resistors for easy installation and connection
to the alarm system. AQUA Plus meets the EN-50131 requirements for Grade 2.