The Avenar detector 4000 features Bosch’s proven ISP technology (intelligent signal processing) through which all sensor signals are processed continually by smart algorithms using neuronal networks. This results in best in class differentiation between real fires and disturbance values. The detector series also includes models with the innovative dual ray technology. It uses multiple wavelengths of two detector LEDs to distinguish smoke particles from other disturbance values. Around 30 percent of false alarms are caused by visible disturbance values like dust, water, vapour or cigarette smoke. Using dual-ray technology, false alarms caused by these values can be reduced significantly.

Modern buildings are increasingly equipped with complex technical infrastructure. This trend leads to a tendency of increased electromagnetic pollution which creates challenges for any installed electrical equipment. It is estimated that between 20 to 30 percent of today’s false alarms have an undetermined cause (BRE-Study: “The causes of false fire alarms in buildings - 2014”). The Avenar detector 4000 was developed taking these new realities into account. The Esmog feature provides robustness against electromagnetic pollution and moreover supplies the installer with information about critical environmental disturbances at the installation site. This allows the system integrator to identify and to resolve critical conditions even more quickly, hence saving time and money.

In addition, during operation and maintenance, Esmog further enhances stability and detection performance by constantly measuring the electromagnetic exposure of each detector and calculating mid- and long-term averages. These are used to predict the exceeding of threshold values even before possible false alarms can occur. Operators can see the current EMC values and averages on the user interface of the fire panel. This will noticeably reduce installation and maintenance effort.

The Avenar detector 4000 includes optical and dual-optical detectors as well as multi criteria detectors including thermal and chemical sensors.