like can be employed power and timer on reed switch 67 operates to begin the timing sequence which terminates in a signal absent turning off the timing device a magnet 70 is carried by knob seat 22 in the closed position of knob seat 22 relative body 24 magnet 70 is positioned on knob seat 22 sufficiently distant from reed switch 67 so as to maintain reed switch 67 in an open configuration off orientation and the timer circuit off when a valve is opened by turning valve alarm 20 knob seat 22 is moved to the open position relative body 24 magnet 70 is positioned on knob seat 22 is correspondingly moved to a position sufficiently close to reed switch 67 so as to maintain reed switch 67 in a closed configuration on orientation and the timer circuit on once the time period of the timer runs down to zero a signal is given to notify that the valve is open and should be closed if the signal is activated turning off the valve stops the signal while a reed switch is employed in the present invention it is contemplated that the valve alarm can be turned on with a flow switch carried in the flow path of the fluid being delivered thus when a knob is turned to initiate flow of the fluid the timer circuit is initiated and a signal will be displayed at the exhaustion of the timer unless the fluid flow is stopped by turning off the valve if the signal is activated turning off the valve stops the signal turning now to fig8 timer circuit 60 includes a display 75 for displaying the timer period this.