User Friendly & Advanced Functionality DISPLAY in °C Dewpoint & °F Dewpoint, ppm(v), ppb(v), g/m3 or lbs/MMSCF 22V – 253V AC or DC Operation Linear 4-20mA Retransmission Signal 2 Independent, Fully Programmable Alarm Relays “AUTOCAL” CALIBRATION FEATURE Fast Response Long Term Stability IP66 / NEMA4 Weatherproof Protection Calibration to National & International Standards