The TW-BSB-23R-01/916 Taurus Wireless VAD and sounder Base is a high performance wireless device, incorporating an EN 54-23 compliant VAD used to alert people in the event of a fire. Each device has an integral moulded base for mounting a Taurus wireless detector or a sounder blanking cap if a detector is not required. The unit has as standard 32+32 recognised sounder tones (primary and secondary) and 4 levels of volume adjustment, as well as high power/low power visual settings, all of which can be easily configured on site. Powered by standard lithium batteries and utilising well proven adaptive radio signal processing algorithms ensure the highest levels of life safety and reliability.