How do I power my Kitchen Thermometer on or off? To power on: Tap the power button until the display reads "On" To power off: Hold the power button down until the display reads "Off" Related articles I'm finished grilling. How can I disconnect my Kitchen Thermometer from the app so it's no longer running in the background? How do I replace the batteries in my Weber Kitchen Thermometer? How can I check the battery life of my Kitchen Thermometer? How can I create a custom preset in the Weber iGrill app to be used with my Kitchen Thermometer? What is the Proximity Wake-Up Feature on the Kitchen Thermometer?