Intermatic Digital Wall Switch Timer Programmable 24 hour Model S55C - LCD quartz digital clock to minute accuracy - 3 minute memory guard -Random pattern turns lamps appliances on/off at slightly different times each day to confuse would be intruders - Built-in program starts after extended power outage - 15 minute lights off delay setting - Replaces any standard wall light switch - 4 On/Off settings per day - Instructions in package New in original sealed blister package WE OFFER COMBINED SHIPPING TO SAVE YOU $$$ WHEN YOU ARE PURCHASING MORE THAN ONE ITEM.