AQUA S is a digital passive infrared detector equipped with
a dual element PIR sensor. Owing to the use of digital motion detection
algorithm it is characterized by good immunity to interference and false
alarms. Interchangeable Fresnel lens and three-step sensitivity control make it
possible to adjust the device performance to requirements of the user and the
protected premises. The detector has a built-in pre-alarm feature and
tamper switch to protect it against opening the enclosure. Because the detector
can be powered from a 24 V DC or AC source, it is intended for systems
running on 24 V (instead of the standard 12 V) voltage.
The main task of the detector is to detect violations in the protected
area. However, it can also be used to implement the building automation
functions. When the alarm system is not armed, the detector can control turning
on the lights, opening or closing the doors, etc.