Anonymous1 year ago000Is it possible to use existing door bell electrical connection? If possible, would the existing door chime work?argautschi1 year ago • purchased this product000purchased this product Helpful answerYes, but only for max. 48V systems (not possible with 220V)Show in original language (German)CommentH.J.Robertz1 year ago • purchased this product000purchased this productYes, it worked perfectly for me.Show in original language (German)Comment1 commentM1ch4el1 year ago • purchased this product-101purchased this productBasically yes, but you should check whether the transformer is powerful enough. Show in original language (German)Comment2 comments