La Crosse Technology TX141TH-BV3 Thermo-Hygrometer Sensor, Beige

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Compatible with models: 308-1414B, 308-1414W, 308-1414MB-INT, and 308-1425C
Wireless transmission of 300ft range (open air); Temperature range: -40 F to 140 F (-40 C to 60 C)