Taylor Precision Products Classic Cappuccino Frothing Dial Thermometer This compact dial thermometer measures temperatures from 120- to 180-degrees Fahrenheit. The optimum frothing temperature zone is indicated in purple on the dial, for fast at-a-glance readings. A convenient metal clip attaches the thermometer to the steaming vessel. The sealed dial will not fog, allowing for constant use. The thermometer is made of tough, stainless steel and features a 5-inch stem.