EN54-3 (CPD) ( ; 529-4424 529-4424 and ; 529-4430 529-4430 only). VdS ( ; 529-4424 529-4424 and ; 529-4430 529-4430 only). Where a range of values are specified for sound output levels and current consumption, the actual figures will depend on the tone chosen, and the volume setting where adjustable. Roshni High Output. Automatic synchronisation Tones compatible with Askari, Squashni and Flashni sounders