The fully WRAS approved inline leak detection system and auto shut-off valve is designed to reduce the risk of costly flood damage by monitoring flow rates and identifying periods of excessive or unexpected flow at which point it will automatically shut-off the water supply. Fitted just after the stopcock, it measures the amount of water passing into the property and compares the flow rate and usage time against pre-programmable levels. If either setting is exceeded the motorised valve will automatically close, shutting the water supply off. The device also features a holiday mode that will switch off the water supply after a defined period of no usage and a handy over-ride feature that allows for water to flow for longer than the pre-set limit.