The flash prices of VADs are in between 0.5 Hz and 2 Hz. VADs may include a synchronisation perform to get rid of the potential for a flash frequency which could end in adverse outcomes, for instance inducing epileptic fits, when devices are in near proximity. VIDs are ideal for https://www.firesense.co.uk/type/conventional-fire-system/conventional-sounders-vids-vads/