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UEi PDT655 Differential Temperature Folding Pocket Thermometer, HVAC Digital Thermometer with Backlit Display and Magnetic Mount, Measures -58 to 572°F: Amazon.com: Industrial & Scientific
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Amazon.com: UEi Test Instruments PDT650 Folding Pocket Digital Thermometer,Yellow : Industrial & Scientific
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Fieldpiece SPK2 Folding Pocket in-Duct Thermometer with MAX/MIN Hold and Stainless Steel Probe: Amazon.com: Industrial & Scientific
![UEi PDT655 Differential Temperature Folding Pocket Thermometer, HVAC Digital Thermometer with Backlit Display and Magnetic Mount, Measures -58 to 572°F: Amazon.com: Industrial & Scientific UEi PDT655 Differential Temperature Folding Pocket Thermometer, HVAC Digital Thermometer with Backlit Display and Magnetic Mount, Measures -58 to 572°F: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41g8A4ZvhTS._AC_UF1000,1000_QL80_.jpg)