For gardeners that have exact timing requirements, we carry the Valuline Weekly Digital Timer. The ValuLine Weekly Digital Timer from AeroponicsNmore will time up to 8 on/off settings per day and is accurate to the minute. The timer has a digital clock and LCD readout. The unit has a minimum on time of 1 minute and a maximum off time of 7 days. Has 2 timed receptacles and a convenient on/off indicator light. The unit is grounded and rated for 15 amps at 120 volts. Comes with a rechargeable Ni-MH Battery.