Appliances keep getting smarter. Thermador has just made our lives a little easier. We've all dealt with the messes created when our pots boil over. Thermador's Sensor Dome addresses this issue, helping us to achieve culinary success and cutting back on the clean up issues.
Their "Sensor Dome" is a pop-up dial with an infrared beam that measures and regulates the temperature of cookware. In doing so, it prevents pots from boiling over and maintains the ideal cooking temperature. When not functioning, the dial retracts, sitting flush with the stovetop's surface. Small and unobtrusive, it addresses and effectively solves a problem we all face, often on a daily basis.
I am not sure if it's worth buying a whole new cooktop but if you are looking to replace one it might be a nice feature to look for.