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Klein Tools 69140 K-Type Thermometer, Pipe Temperature Clamp for HVAC, Measures -4 to +212 Degrees Fahrenheit - - Amazon.com
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Winters TCT Series Dual Scale Mild Steel Clamp-On Thermometer, 2-1/2" Dial, 30-240 F/C Range: Science Lab Bi Metal Thermometers: Amazon.com: Industrial & Scientific
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