"Our building is a small condo building located in the Knob Hill section of San Francisco, CA. When built in 1988, it had 29 units, but a few have been combined over the years. We realized we needed a solution to stopping costly leaks in the units after 3 leaks in one year started on upper floors and caused major damage in numerous units below them. Our owners include many who live here only part time so no one is in the unit when the leak starts. One big advantage of the Aware system is that once installed, it passively detects leaks so no one has to remember to shut off valves if they will be away. ...Aware's tech staff was very helpful in assessing this. We hired an electrician to connect the gateways to the modem in an office on a lower floor. That was the only thing that had to be installed.We checked how many water sources each unit had. The typical unit needed 12-15. I put labels on each of our 385 sensors and input that location data into the Aware app so leaks are very specifically identified. (E.G. master bath right sink). That way if water gets on it, we can inform the owner where to check or dispatch the manager or doorman to check if no one is home. We get a few "false alarms" each month where a homeowner, their cleaning crew or contractor gets water on the sensors. It takes some reminders of owners and tenants and their contractors to move them temporarily if water could get on them, and to work with them on good locations to minimize false alarms. One refrigerator kept sending a signal and we realized the owner's large dog had his water bowl next to it! The support from Aware has been amazingly responsive from the beginning. The app lets you monitor the status of each unit. When a few kept going offline frequently, Aware replaced them with longer reach sensors that then kept connected to the gateway. The only costs the HOA paid for were the installation of the gateways and any units that were in common areas (E.G. lobby bathroom and manager's apartment). The HOA bought all the sensors and passed the modest cost of the sensors to each owner via their monthly assessment bill. Once a year we add the in-unit sensor monitoring charge to that homeowner's bill. We have had this system in place for about two years and have been very pleased. We have caught 6 leaks in their early stages before there was damage. Our homeowners are very happy to avoid these previously costly repairs. ..I recommend this solution and Aware with no reservations. Before we installed it, I spoke to people in several nearby buildings, and everyone from homeowners to building managers gave the system praise."