Weber iGrill Round Bluetooth Compatibility Grill Thermometer in the Grill Thermometers department at Lowes.com
Amazon.com: 67088 67731 Accurate Grill Thermometer for Weber Genesis 300, Genesis II & Summit Series Grills, Genesis E/S 310 330 Temperature Gauge, Thermostat Replacement for Weber, Center Mount, 2-3/8” Diameter : Patio, Lawn & Garden
How to Install a Thermometer on the Weber Kettle Grill - YouTube