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The S4000 Remote is a precision laboratory dew-point hygrometer with the ultimate accuracy, reliability and long-term performance for humidity measurement and calibration. The product offers unmatched accuracy and reliability in dew-point measurements of air and gas systems in calibration laboratories. Its powerful three-stage Peltier thermoelectric heat pump gives a depression capability of more than 160°F at normal laboratory temperature. The S4000 Remote comprises a free-standing sensor and a 19" x 5.5" U monitor unit, connected by individual power and signal cables for the most stable and precise dew-point control.