Controler unit only - compatible with FloodStop single-valve leak detection kits
Powered with AC/DC power supply (not included) and or optional battery power ( 4 AA batteries, not included) can be used as a back-up during a power outage
Buttons on the front of the unit are easily accessible and illuminate to show status; adjustable sensor sensitivity
All wired connections are different for easy installation
Maintenance-free, monthly auto-cyclying of valve(s)