water leaks detector? Answered

can i make a sensor with sound and light to warn me if water is being lost ( say if im asleep at night.). my water feed meter is in the garden and the main pipe leads into the kitchen and bathrooms upstairs. i naad to put a sensor on the pipe so when water is moving through a light and warning signal informs me of a possible leak even when all taps are closed. mahomed modtrend@gmail.com