Incredibly easy to use, this timer involves no complex programming. Simply plug in the device that you don\'t want to leave on (whether it\'s an iron or a heater), set the timer for a time between 15 minutes to 9 hours, and the timer will then countdown and automatically turn off the device when the countdown has ended. Great for those who often forget to turn off devices, and will help you to save on energy bills and overcharging/overheating of electrical items. There is a daily repeat function, where a countdown time can be set to repeat at the same time every day.