Electronic sounder module with transducer technology for Modul Perfect 70 modular signal tower, For mounting at the top of a signal tower, 16 tone groups, each comprising 7 signal tones = total of 112 tones, 16 tone groups can be selected via DIP switch, Binary, external switching of all 7 tones in a tone group via 3 inputs, The wide variety of tones meet virtually all acoustic signalling requirements, Max. 105 dB volume, can be controlled with potentiometer, High degree of protection IP66, UL type 4/4X/13