Winters TSW174-2LF Well Hot Water Thermometer, 1/2" NPT, 30 to 250 degrees F, ±1% accuracy: Science Lab Bi Metal Thermometers: Amazon.com: Industrial & Scientific
Pyromation BMI3A49-2(1/2)-9HN-G-P-1170 Bi-Metal Thermometer, 1/2" NPT, 0 to 220°F
1/2" MIP Dial Thermometer - RJ Supply House Plumbing Heating
Tel-Tru Digital Dial Thermometer, 2-1/2" Stem L ND5BB09111-P22026 | Zoro
Amazon.com: Dial Thermometer, Stainless Steel Thermometer for Home Brewing, 1/2 NPT Kettle Thermometer with Lock Nut & O-Ring(3" Face) : Industrial & Scientific
MEASUREMAN Hot Water Bi-Metal Thermometer, 2-1/2" Dial, 1-3/4" Lead-Free Brass Stem, Range 0-250 deg F/-20-120 deg C, 2% Accuracy, Adjustable, 1/2" NPT Back Mount: Amazon.com: Industrial & Scientific