It is possible to add 2 or more chimes operating from 1 bell push.

If using battery power then this is suitable, only be careful of the amount of wire used. We do not suggest over 15 metres from bell push to chime unit. 

If transformer power then we suggest 8-12 volt transformer with 1 amp output per chime used. For example:

2 chimes then 8-12 volt 2amp transformer.

3 chimes 8-12 volt 3amp transformer.