The iGuardStove is always on so there are no buttons to press. Simply turn your stove on as you normally would to start cooking. After 5 minutes of not seeing any motion it shuts off the stove. After the device had had to shut off the stove, and upon your return to the kitchen, the iGuardStove will automatically turn the stove back on to finish your cooking. This will prevent burnt food and even worse…a stove fire. The best electric stove auto shut off device you can buy!