This 2 in smart flood protection ACV with threaded end connections and SentryPlus Alert™ wireless alert system prevents catastrophic property damage due to excessive RPZ backflow relief valve discharge by continuously monitoring for excess discharge, and closing the water supply to the backflow during potentially catastrophic flood conditions. If the RPZ relief valve opens, excess flow trips the flow sensor which energizes the solenoid and closes the valve. They feature a time delay to prevent false alarms and a control valve switch to provide an indication of valve closure. This valve also features SentryPlus Alert™ technology to provide multi-channel alerts to notify you in real time if there is an issue so you can take action. Alerts can be a text, email, or phone call.