Excelia 4 detectors + Prowess control unit

All this simply by pressing the buttons. Several levels of adjustment are accessible for very fine adjustments. Then, these detectors also have a set of snag bar equipped with each detector and a night mode. On the side of the case, there is a socket for visual indicators of the buttons. The Prowess EXCELIA detectors use an internal memory that stores the settings made by the user. These settings will be effective every time the device is turned on. A major advantage is that the detectors work with only one AAA battery per cell!