We have had it at least two months and it has signaled three falls that did not happen. We were able to stop personnel from coming only one of three times because they called me in person. The other two times it was robotic, my 89-year old Dad did not hear it & emergency people were sent to a restaurant in vain & one night came into Dad’s house as he laid sleeping in bed. Now we are out of state from him and I got an email saying his system was shut down when we need it most. I guess I need to ask for a refund & return it, since it is not working for us. And of course they are closed on weekends to top it off.