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PTC Instruments Surface Thermometer - StewMac
Humidity Control and Monitoring - StewMac
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Amazon.com: Extech RHM15 Mini Temp and RH Indicator : Industrial & Scientific
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Amazon.com: Extech RHM15 Mini Temp and RH Indicator : Industrial & Scientific
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Bulova B2980 Mahogany Brass Desk Mantle Clock with Thermometer Hygrometer | eBay
