I have a place that is somewhat susceptible to flooding if a sump breaks down during a particularly bad breakup or storm. What I want is a water backup alarm that will call or text me if it fails.
There are a bunch of them out there but most rely on wifi or some other internet/phone connection. I have heard there are some systems that you can pay a small annual fee for data and it uses the cellular networks to text you. Have any of you used one of these systems? Good? Bad?