CWSB-E Conventional Wall Sounder Beacon - Red Case (non EN54-23 compliant)CWSB E Conventional Wall Sounder Beacon Red Case (non EN54 23 compliant) The CWSB E is a conventional wall sounder beacon with improved electronic design which enables very low current consumption whilst providing a range of tones and volumes, selectable from the DIL switches on each unit. The beacon and sounder are fully synchronised. The unit is supplied with its own base, either a shallow base (IP21) or a deep base (IP33). Other lens colours are