Bosch FAA-325-B6S Analog sensor base with sounder 6 inch Commercial F.01U.133.063

Sound pressure level of 85 dB at 10 ft Can be alarmed by zone or by host Base learns the detector address and adds 127 to it (address range from 128-254) Digital data communications via the attached detector and powered over a four-conductor circuit Operating relative humidity (%) (maximum) 93 % Operating temperature (°C) 0 – 50 °C Weight (kg) 0.21 kg