Addressable Wall Mount Sounder and Strobe Selectable sound level - LOW (80-88dB)* and HIGH (92-98dB)* 32 sound types selectable from the panel Piezo sounder Loop synchronization Loop powered Transparent plastic case EN54-3 and EN54-17 compliant *Depends on the selected sound type. The main tone type is 27 - the detailed description of the tone types is presented in the installation manu