SKYPOINT Extra Add-On Battery Operated Receiver - compatible with All SadoTech Expandable Series Long Range Wireless Doorbell Chime Alert System, White

All SadoTech Expandable Wireless Multi-Unit Long Range Doorbell Alert System are CONFIGURABLE and EXPANDABLE doorbell systems that can EASILY ADD on 20+ more extra receivers, transmitter buttons, motion sensors and door sensors. CONFIGURABLE and EXPANDABLE doorbell system. Add on or build your own system. EASILY ADD on any number of additional receivers, transmitters, motion sensors or door sensors. Long range operation with the receiver at over 500 feet CE, FCC, RoHS certified.