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REED Instruments R6050SD-NIST Data Logging Thermo-Hygrometer,

REED Instruments R4500SD-KIT Data Logging Hot Wire Thermo-Anemometer with Power

REED Instruments R4500SD Data Logging Hot Wire Thermo-Anemometer

Vintage Vane Anemometer Analog Wind Speed Meter 0-100 Range Pat. No:3729