Lucky Reptile Digital Timer 

The PRO Timer is a digital timer and has a minimum time setting of one second! This makes it excellent for controlling rain systems. Over the time frame of a week, 8 separate time settings can be programmed, e.g. a programm can be repeated daily, or there is the possibility to programm the device to work only on a special week day. This gives you the highest possible flexibility for controlling your vivarium technical items. A replacable battery ensures saving of the setting. The maximum wattage is 3500W. This is a UK model