Features Ultra fast response cross-linked bulk polymer capacitive sensing element Proprietary hydrophobic and oleophobic ePTFE filter to protect the sensing element from condensation, fog, salt air, pollutants and other contaminants Rugged steel enclosure and thick-walled aluminum probe rated NEMA-4 (IP-65) to withstand weather extremes NIST traceable ± 2% RH or ± 3% RH calibration accuracy Two temperature compensated output versions, 4-20 mA 2-wire or field selectable 0-5 VDC/0-10 VDC Conforms to EMC and RoHS standards Two enclosure types: NEMA-4 (IP-65) duct mount or aesthetically appealing ABS plastic wall mount