Abstract: A household fluid flow-rate monitor and control system is provided to prevent flood damage, fluid leakage and loss of fluid. The system includes a plurality of alarm units for monitoring fluid flow in the system; an automatic electrically operated valve for shutting off the fluid flow to prevent damage; a fluid meter for sending to a monitor an electrical signal for every unit of fluid flowing through the system; and a controller unit including a microprocessor unit and a memory unit connected to the automatic valve to shut off the system. The monitor receives input from the fluid meter or from a flood sensor and sends alarm signals for several types of events, such as burst flow, leakage, flood, etc. to the controller unit. The unit also has a manual override switch to bypass the electronics.