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The Nova 207 Series Portable Dew Point Analyzers have been designed primarily for accurate dew point measurement of exothermic and endothermic heat treating atmospheres.

The dielectric polymer sensor provides stable and accurate dew point measurements and is not affected by most gas compositions.

A built in sample pump draws in samples that are of insufficient pressure from the process. The sample flow is shown on a small rotameter with valve. The analyzer then reads the dew point continuously.
Unit of Measure


Method of Detection

N/A Dielectric polymer sensor that change capacitance with moisture variation

Ranges Available

N/A -40°F to +104°F (-40°C to +40°C) Dew Point


N/A 1°F (1°C) Dew Point

Accuracy & Repeatability

N/A ±1°F (±1°C) Dew Point


N/A Less than 1% of full scale range per month

Response Time (T-90)

N/A Less than 30 seconds

Ambient Temperature Range

N/A -18 to 49 ºC0 to 120 ºF


N/A Better than 1°F (1°C) Dew Point

Size & Weight

N/A K Suitcase Style - Approx. 14" L x 6" H x 11" D @ 12 lbs (36 x 15 x 27 cm @ 5.4 kg WP style - approx. 12" L x 8" H x 7" D @ 8 lbs (30 x 20 x 18 cm @ 3.6 kg)


N/A 115 VAC 60 Hz for recharging 220VAC 50Hz available

Output Options

N/A 4-20 mA or 0-1 VDC


N/A High or low dew point alarms with LED (optional)

Hazardous Area Rating Options

N/A General Purpose, Non-Hazardous



    For checking dew points at atmospheric pressure of air, heat treat furnace gases, compressed air lines and other applications with oils or contaminants present.



  • Standard range of -40 to +104°F (-40 to +40°C) Dew Point
  • Rugged design that is easy to operate
  • Use on any non-corrosive gas
  • Long-life dielectric polymer sensor
  • May be calibrated in the field
  • Bright digital readout
  • Built in sample pump, filter and flow meter
  • Suitcase style (K) enclosure is standard
  • Sensor easily replaced if contaminated
  • Factory calibrated to NIST traceable standards



  • Recorder outputs of 0-1 V or 4-20 mA
  • Calibration kit
  • Rugged weatherproof enclosure (WP)
  • Bench top enclosure (BT)



  • Calibration is easily performed in the field using the optional calibration kit (Part no. NDPCK-02)
  • Alternatively, the analyzer may be returned to Nova for a certified calibration

Unique Applications


    The 207 Series should not be used to measure dew points when trace amounts of sulfur trioxide (SO3), chlorine (Cl2), hydrogen chloride (HCl), or ammonia (NH3) are present. All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova. In many cases, we are able to build an analyzer specific to your needs.

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