The new series of wireless doorbells
BZ11
The set includes one receiver and one transmitter. Doorbell is characterized by small size and is suitable for medium ranges.
BZ11-12
The set includes one receiver and two transmitters with different tones, you always know whence visitor comes.
BZ11-21
The set includes two receivers and one transmitter. Receivers can be used for two different locations (for example corridor, garage), when pressed button, you hear ringing in both places.