Sonic Alert HomeAware Replacement Doorbell (Version 2.1)
Additional doorbell transmitter for the HA360MK (sold separately which already comes packaged with one doorbell transmitter) to alert you when someone is at a second door (back door, side door).
A total of four (4) doorbell transmitters may work with the HA360MK to accomodate other doors
Doorbell transmitter may be used as a portable SOS alert
Can be installed in minutes and requires no wires
Can also use doorbell transmitter as a portable personal SOS alert
