The Redstone Delay adds a delay from 1 to 200 ticks (50 miliseconds to 10 seconds) before repeating an input signal. It will repeat the redstone signals length that is sent to it if it is turned off before the delay is over. Note that it can only handle one signal at a time and will ignore any signals sent to it during its delay if the first signal ended. There is no delay when ending the signal, only when it recieves a new one. Right Click on the Redstone Delay to bring up its GUI.