WERMA  
 Signal Towers
 Optical Signal Devices
 Optical-Audible Signal Devices
 Audible Signal Devices
 EEx Signal Devices

Audible Signal Devices

107 Electronic Installation Buzzer
109 Electronic Installation Buzzer
110 Electr. Installation Multi-Tone Sounder
114 Electronic Installation Buzzer
118 483/ 119 483 Electronic Buzzer
118/119 Elecronic Installation Buzzer
123 Electronic Siren
126 Electronic Multi-Tone Sounder
129 Electronic Multi-Tone Sounder
140 Multi-Tone Sounder