Keep the oven door closed to keep heat inside, yet know the precise temperature of the food you're cooking! How is it possible? Thanks to the cable and probe which links food temperature information to the digital display, that's how. Additionally this device functions as a 24 hour timer. Set the timer or the temperature and the alarm will let you know when the food is ready. The large LCD read out is clearly visible whether you mount this to a magnetic surface or let it sit on your counter.