| Shipping | Tax | Terms Shopping Cart 0 Items Request for Quote 0 Items All Categories > Humidity Humidity Click on a Product to view details. FL 510 Industrial Humidity Transmitters (2) The FL 510 is equipped with a capacitive humidity sensor that provides long-term stable, accurate measurement results. Two analog outputs are available for the output of relative humidity and process temperature. FO 510 Industrial Oil Moisture Sensors (2) Maintain Your Air Compressor Learn more about maintaining your air compressor by downloading our eBook on air compressor maintenance. Download eBook