The flash prices of VADs are between 0.five Hz and 2 Hz. VADs may include things like a synchronisation operate to get rid of the opportunity of a flash frequency that may result in adverse outcomes, like inducing epileptic suits, when gadgets are in shut proximity. VIDs are suited to https://www.firesense.co.uk/type/conventional-fire-system/conventional-sounders-vids-vads/