These are the high-performance cooktops for those who take their cooking seriously. They feature optimized burner configurations for maximized pan spacing and excellent cooking versatility. The unique diamond burner layout of the PCK755UC provides unrivalled flexibility in using multiple large pans simultaneously. The SMARTFLAME safety feature automatically shuts off the gas to the burner should the flame extinguish for any reason. SMARTFLAME Flame Safety For maximum user safety, a thermocouple is used to sense the presence of a flame after a burner is turned on. If the flame should blow out, the sensor will immediately register the change in temperature and turn off the gas flow. Now, you can use your gas cooktop without fear of excess gas escaping into the room.