Audible Visible Range Integrated Detector Base Sounders are high quality loop powered device designed to alert building occupants of an emergency. It utilizes the System Sensor B501AP base for improved installation flexibility and integrates seamlessly with SS intelligent detectors. When triggered by the fire panel its powerful sounder gives an audible warning. It is powered by the fire panel via the loop wiring. A choice of output levels and tones make the device suitable for a wide variety of applications
