We have been using A-Bell alarms to secure our medical practice for many years. They are an extremely professional, attentive, responsive, local company. Just recently their high quality sensor alerted us to water dripping in the early stages of a water heater leak saving us from a massive flood and saving us from a huge expense. I would recommend A-Bell alarms to any business or residential customer. We are so happy with their service and will be their customer for many years to come.