Electronic enterprises presents dew point meters. These meters have ability to continuously monitor for fast and accurate measurement of moisture up to ppm levels. The instrument uses a capacitance sensor that has unique auto calibration of wet limit facility the high capacitance eliminates need of any correction device like eproms. Also, the sensors used can be replaced. These instruments are supplied with a npl - uk traceable calibration certificate [optional]. Thus for online measurements, more than 100 m long sensor cables may be used without and correction devices. The online dew point sensor is also available with a 4-20 ma isolated output to connect it directly to plcs. These meters are useful in quality chocks for gas manufactures, measurement of sf6 gas dew point in circuit breakers, dry air in process industry [petrochemical, pharma, fertilizer], hydrogen gas in hydrogen cooled turbines in power plants, co, gas is distilleries. Lpg gas in refineries and many more such applications.