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PosiTecto rDPM Dew point meter

The PosiTector DPM Measures and records climatic parameters including: Relative humidity, air temperature, surface temperature, dew point temperature and difference between surface and dew point temperatures. Ideal for surface preparation as required by ISO 8502-4, BS 7079-B4, ASTM D3276-05 and US Navy NSI 009-32

PosiTector DPM dewpoint meter

Helpful PosiTector DPM Videos

Overview Video 4:55

Introducing the expanded family of PosiTector DPM Dew Point Meter models with enhanced remote monitoring capabilities from DeFelsko- the Measure of Quality

Remote Monitoring 6:36

Measuring environmental conditions and remote monitoring with the PosiTector DPM Dew Point Meter series from DeFelsko—the Measure of Quality.

Webinar 23:11

A webinar from DeFelsko featuring the PosiTector DPM Dew Point Meter. Recorded from the live stream of this webinar on March 15, 2018.


  • All readings are constantly updated and displayed simultaneously

  • Alarms indicate when climate conditions are unsuitable for painting

  • NEW Larger 2.8″ impact resistant color touchscreen with redesigned keypad for quick menu navigation

  • NEW On-gauge help explains menu items at the touch of a button

  • No need to consult complex tables or use a slide rule calculator


  • NEW Weatherproof, dustproof, and water-resistant—IP65-rated enclosure

  • NEW Ergonomic design with durable rubberized grip

  • Shock-absorbing, protective rubber holster for added impact resistance

  • Two year warranty on gauge body AND probe


  • Fast response precision sensors provide accurate, repeatable readings with high reliability and long term stability

  • Smart Trend Indicators identify rising, falling or stable readings

  • Certificate of Calibration showing traceability to NIST included

  • Conforms to national and international standards including ISO and ASTM


  • Auto Log mode records environmental parameters at user selected time intervals

  • NEW Auto rotating display with Flip Lock

  • PosiTector DPM L attaches to steel structures to measure and record environmental parameters independently for up to 200 days. Stored datasets can be downloaded using a PosiTector Advanced gauge body or Apple/Android smart device.

  • Celsius/Fahrenheit switchable

  • Selectable display languages


  • NEW Screen Capture—save 100 screen images for record keeping and review

  • NEW Instant-on feature quickly powers up the gauge if recently powered down

  • NEW Up to 30% longer battery life

  • USB port for fast, simple connection to a PC and to supply continuous power. USB cable included.

  • PosiSoft USB Drive—stored readings and graphs can be accessed using universal PC/Mac web browsers or file explorers. No software required.

  • Includes PosiSoft suite of software for viewing and reporting data

  • Software Updates via web keep your gauge current

  • Every stored measurement is date and time stamped

Probe Interchangeability

Find out more about the PosiTector DPM and all the features that come with it


Find useful instruction manuals and quick guides for the PosiTector DPM


You will discover some really helpful frequently asked questions here and may find the answer to your query

PosiSoft Software

Learn about the DeFelsko PosiSoft software to assist with your coating thickness gauge


All the useful accessories to accompany your PosiTector DPM can be found here.

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