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PosiTector® DPM

Dew Point Meters for Environmental Monitoring

Measures and records climatic conditions including: relative humidity, air temperature, surface temperature, dew point temperature, wind speed, and difference between surface and dew point temperatures.

Ideal for surface preparation as required by ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7, and US Navy NSI 009-32.

  • NEW Larger 2.8" impact resistant color touchscreen with redesigned keypad for quick menu navigation
  • NEW Weatherproof, dustproof, and water-resistant—IP65-rated enclosure
  • Fast response precision sensors provide accurate, repeatable readings
  • Auto Log mode records environmental parameters at user selected time intervals
  • PosiTector interchangeable platform—attach any PosiTector probe to a single gage body
  • USB, WiFi, and Bluetooth connectivity to PosiSoft PC, Mac, and Smartphone software
  • Certificate of Calibration showing traceability to NIST included (Long Form)
Made in USA flag with black text below
Conforms to ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7, US Navy NSI 009-32, and Navy NAVSEA 009-32

Features

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Simple

  • 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-gage help explains menu items at the touch of a button
  • No need to consult complex tables or use a slide rule calculator
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Durable

  • 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 gage body AND probe
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Accurate

  • Fast response precision sensors provide accurate, repeatable readings
  • SmartTrend™ Indicators identify rising, falling, or stable readings
  • Certificate of Calibration included showing traceability to NIST
  • Conforms to national and international standards including ISO and ASTM
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Powerful

  • NEW Screen Capture—save 100 screen images for record keeping and review
  • NEW Instant-on feature quickly powers up the gage 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 gage current
  • Every stored measurement is date and time stamped
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Versatile

  • 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 gage body or Apple/Android smart device.
  • Celsius/Fahrenheit switchable
  • Selectable display languages

Standard Models

Includes ALL features as shown on left plus...
Includes ALL features as shown above plus...
  • Storage of 2,500 datasets—stored readings can be viewed or downloaded
  • Auto Log mode runs unattended on batteries for up to 60 hours or continuously via USB

Advanced Models

Includes ALL features as shown on left plus...
Includes ALL features as shown above plus...
  • NEW Storage of 250,000 datasets in up to 1,000 batches
  • Enhanced Auto Log mode turns the gage off between readings for up to 8 months of battery life. Each reading can be uploaded to PosiSoft.net or an FTP server using WiFi. Automatically group readings into batches at daily, weekly, or monthly intervals.
  • User defined limits for all parameters—visible and audible warnings. Receive email alerts when connected to WiFi.
  • Trend Charts graph readings in real-time
  • NEW Touchscreen keyboard for quickly renaming batches, adding notes, and more
  • Wet bulb temperature can be displayed and recorded
  • WiFi technology wirelessly synchronizes with PosiSoft.net and downloads software updates
  • Bluetooth 4.0 Technology for data transfer to a mobile device running the PosiTector App or optional portable printer. BLE API available for integration into third-party software.
  • Integrate with third-party software, drones, ROVs, PLCs, and robotic devices using several industry-standard communication protocols
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Specifications

Specifications
Range
Accuracy
Resolution
Surface Temperature
-40° to 80° C
± 0.5° C
0.1° C
80° to 190° C
± 1.5° C
-40° to 175° F
± 1° F
175° to 375° F
± 3° F
0.1° F
Infrared Surface Temperature*
-70° to 380° C
-94° to 716° F
± 1° C + 1%**
± 1.8° F + 1%**
0.1° C
0.1° F
Air Temperature
-40° to 80° C
± 0.5° C
0.1° C
-40° to 175° F
± 1° F
0.1° F
Humidity
0 to 100%
± 3%
0.1%
Wind Speed
0 to 20 m/s
0 to 44 mph
± 3% Full Scale
0.1 m/s
0.1 mph
Dew Point
-60° to 80° C
-76° to 175° F
± 3° C
± 5.4° F
0.1° C
0.1° F

* DPM IR models only
** At 23° C (73° F) ambient
†  DPM A models only
‡ dependent on RH. See Dew Point (Td) Accuracy for more information.

PosiTector DPMA and DPMD
PosiTector DPM Probes
ALL GAGES COME COMPLETE with humidity, temperature sensors, protective rubber holster, wrist strap, 3 AAA batteries, instructions, nylon carrying case with shoulder strap (DPM/DPMA/DPMD), hard shell carrying case (DPMS), protective lens shield, Long Form Certificate of Calibration traceable to NIST, USB cable, two (2) year warranty.
View More Features

Models

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View PDF Order Guide

Step 1: Choose a gage body

Step 2: Choose probe style

Click model to download cutsheet
PosiTector DPM1 Probe
DPM1
Probe Description
Integral Probe
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
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In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMA1 Probe
DPMIR1
PROBE DESCRIPTION
Integral Probe with Infrared Surface Temperature Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMS1 Probe
DPMS1
PROBE DESCRIPTION
Integral Probe with Cabled Surface Temperature Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMA1 Probe
DPMA1
PROBE DESCRIPTION
Integral Probe with
Wind Speed Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • Wind Speed
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMD1 Probe
DPMD1
PROBE DESCRIPTION
Cabled Probe with
1/2" NPT Threads
MEASURED PARAMETERS
  • ---
  • Air Temperature
  • Relative Humidity
  • Dew Point Temperature

  • ---
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST

Step 2: Choose probe style

Click model to download cutsheet
PosiTector DPM1 Probe
DPM3
Probe Description
Integral Probe
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMA1 Probe
DPMIR3
PROBE DESCRIPTION
Integral Probe with Infrared Surface Temperature Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMS1 Probe
DPMS3
PROBE DESCRIPTION
Integral Probe with Cabled Surface Temperature Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMA1 Probe
DPMA3
PROBE DESCRIPTION
Integral Probe with
Wind Speed Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • Wind Speed
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMD1 Probe
DPMD3
PROBE DESCRIPTION
Cabled Probe with
1/2" NPT Threads
MEASURED PARAMETERS
  • ---
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature

  • ---
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
*Wet Bulb Temperature displayed/recorded on PosiTector Advanced (3) models only

Step 2: Choose probe style

Click model to download cutsheet
PosiTector PRBDPM Probe
PRBDPM
Probe Description
Integral Probe
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMA1 Probe
PRBDPMIR
PROBE DESCRIPTION
Integral Probe with Infrared Surface Temperature Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMS1 Probe
PRBDPMS
PROBE DESCRIPTION
Integral Probe with Cabled Surface Temperature Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMA1 Probe
PRBDPMA
PROBE DESCRIPTION
Integral Probe with
Wind Speed Sensor
MEASURED PARAMETERS
  • Surface Temperature
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature
  • Surface Temperature minus 
    Dew Point Temperature
  • Wind Speed
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
PosiTector DPMD1 Probe
PRBDPMD
PROBE DESCRIPTION
Cabled Probe with
1/2" NPT Threads
MEASURED PARAMETERS
  • ---
  • Air Temperature
  • Wet Bulb Temperature*
  • Relative Humidity
  • Dew Point Temperature

  • ---
  • ---
View PDFAdd to Instant Quote
Green check graphic denoting that an item is in stock
In Stock
Same-day shipping if ordered by 2PM EST
*Wet Bulb Temperature displayed/recorded on PosiTector Advanced (3) models only
Note: Newer probes may not be compatible with older gage bodies. See probe compatibility chart for more information
SmartLink and App in use

PosiTector SmartLink - A Smart New Way to Measure

PosiTector SmartLink and free mobile app turns your cell phone or tablet into a virtual PosiTector gage.

Wirelessly connect PosiTector probes to your Apple iOS or Android smart device.

For more information about the PosiTector SmartLink, click here.

Note: Newer probes may not be compatible with older gage bodies. See probe compatibility chart for more information

Videos

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Saving Money and Time with PosiTector Probe Interchangeability
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Measuring Environmental Conditions and Remote Monitoring with the Dew Point Meter Series
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New PosiTector Gage Body
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PosiTector DPM Webinar
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PosiTector SmartLink
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PosiTector DPM Dew Point Meter Overview

Software

PosiSoft Software in use

PosiSoft Desktop

Powerful desktop software for downloading, archiving, and reporting measurement data. No internet connection required.

  • Simple, intuitive user interface
  • Import readings directly from the gage via USB, WiFi, or legacy PosiSoft Desktop versions
  • Fully integrates with PosiSoft.net—backup and synchronize jobs, batches, readings, and report templates to the cloud. Click here to learn more about PosiSoft.net
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PosiTector App

An easy-to-use mobile app (iOS/ Android) that connects to your PosiTector Advanced, PosiTector Smartlink, or PosiTest AT-A. Compatible with PosiSoft.net.

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PosiSoft USB

A simple gage interface to retrieve data in a manner similar to a flash drive. No software to install or internet connection required.

Learn More

PosiSoft Custom PDF Report Generator

featured on PosiSoft Desktop, PosiSoft.net, PosiTector App
Easily create reports from your measurement data in seconds
  • Generate custom, professional PDF reports
  • Include inspection information such as on-site pictures, screen captures, notes and more to communicate important details
  • Create and save multiple custom layouts as templates – insert cover pages, add logos/images, and select font and point size
  • Select the information to include for each product type – charts, histograms, readings, time stamps and more
  • Compile multi-batch reports from one or more probes and instrument types

PosiSoft.net

PosiSoft.net is a free cloud-based application offering secure storage of PosiTector and PosiTest Inspection Instrument data. Click Here to learn more.

PosiTector Developer Resources

From wired USB to WiFi wireless technology, DeFelsko instruments offer data management solutions for even the most advanced software integrations. Accessing your stored or live streaming data is simpler and more flexible than ever before. PosiTector and PosiTest AT-A instruments have the ability to integrate with third-party software, drones, ROVs, PLCs, and robotic devices using several industry-standard communication protocols.

Learn More about Integrating Third-Party Devices and Applications

F.A.Q.

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Do your instruments require any formal training for use? Do you offer ‘demo’ models?

No. Our instruments are designed for simple operation, feature easy-to-use menus, instruction manuals, and helpful videos. In lieu of demonstration models, we provide unlimited technical support via telephone and/or email, and a limited 30-day money back guarantee.

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Is the PosiTector DPM calibrated at the factory?

The PosiTector DPM arrives fully calibrated and ready to measure. A Long-Form Certificate of Calibration traceable to NIST or PTB is included, which documents actual readings taken by your instrument at our calibration laboratory on standards traceable to a national metrology institute. Beware of ‘Certificates’ or ‘Certificates of Conformance’ offered by competitors. These typically do not include actual instrument readings, and are often insufficient to meet common quality requirements.

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Does the PosiTector DPM provide a wet-bulb temperature measurement?

Yes. When combined with either a PosiTector Advanced gage body or PosiTector SmartLink wireless probe adapter, the DPM will indicate a wet-bulb temperature measurement.

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Is the PosiTector DPM suitable for applications with low or negative dew point temperatures?

The PosiTector DPM provides accurate dew point readings (±3° C) down to -40° C.

Dew point is a calculated value, based on temperature and humidity. At low negative dew point temperatures, the calculation is highly dependent on relative humidity and changes of ±3% RH (the tolerance of the PosiTector DPM’s humidity sensor) can have a significant impact on the dew point temperature.

The Dew Point (Td) Accuracy page details the accuracy of the calculated dew point temperature based on the measured temperature and humidity.

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Is the PosiTector DPM suitable for high pressure environments?

Yes. The PosiTector DPMD is specifically designed for use in pressurized environments (max 100 psi / 0.69 MPa) and has ½” NPT threads for secure installation on pipes and tanks.

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Will any k-type thermocouple work with the PosiTector DPMS?

The PosiTector DPMS Magnetic Surface Temperature Sensor can be disconnected from the K-Type thermocouple connector and replaced with any K-type thermocouple.

DeFelsko offers the following optional k-type sensors:

  • Hand-held Surface Temperature probe: for spot-checking difficult-to-access areas.
  • Liquid Temperature Probe: general purpose probe with stainless steel shaft.
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How long does it take the probe to acclimate, and provide accurate measurements in a new environment?

The PosiTector DPM, like other electronic dew point meters, requires adequate time to acclimate to its operating environment. When moving between similar environments, the instrument will stabilize in a matter of seconds. However, when moving between environmental extremes (like between a dry, air conditioned vehicle and the warm, humid outdoors) it can take up to 30 minutes for readings to stabilize.

If left in a dry environment for an extended period of time, this stabilization process may take longer. To restore the original response time, wrap the sensor in a damp cloth overnight.

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Is the PosiTector DPM suitable for logging temperatures inside an oven?

We do not recommend our PosiTector DPM for operation in an oven. Delicate internal components and assembly materials are prone to premature damage when subjected to prolonged use in a closed environment with temperatures greater than approximately 50° C. The PosiTest OTL Oven Temperature Logger is ideal for measuring and recording oven temperature profiles,

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How often should the PosiTector probe be recalibrated?

PosiTector probes include a Certificate of Calibration showing traceability to NIST or PTB included (Long Form) with each probe—with no expiry or end date. They have no shelf life, therefore the length of time in the field is not a good indicator for recalibration intervals. Many organizations with quality programs and recertification programs require annual recalibrations, and this is a good starting point for most users. DeFelsko recommends that customers establish calibration intervals based upon their own experience and work environment. Based on our product knowledge, data and customer feedback, a one year calibration interval from the date the instrument was placed in service is a good starting point.

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Still need help?

Before returning your gage or instrument for service, review the troubleshooting steps on the Troubleshooting guide, or speak with a member of our technical support team by calling +1-315-393-4450.

Accessories

PosiTector Gage BodiesPosiTector Gage Bodies

PosiTector Gage Bodies can be used with all PosiTector probes. Choose from Standard or Advanced models.

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PosiTector ProbesPosiTector Probes

PosiTector bodies accept all PosiTector probes easily converting from a coating thickness gage to a surface profile gage, dew point meter, soluble salt tester, hardness and ultrasonic thickness gage.

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PosiTector DPM LPosiTector DPM L

Dew Point Meter Logger attaches to steel structures to measure and record environmental parameters independently for up to 200 days.

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Bluetooth PrinterBluetooth Printer

Battery-operated and light weight, this Bluetooth Printer prints readings and statistical summaries via Bluetooth from Advanced models.

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PosiTector CasePosiTector Case

Convenient hard shell case for carrying a PosiTector gage body and multiple probes

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AC Power KitAC Power Kit

Use for continuous operation. This kit supplies several alternate power solutions for your battery-operated PosiTector. Operate your gage without the need for batteries.

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Pelican Cases for PosiTector Inspection KitsPelican Cases for PosiTector Inspection Kits

Heavy-duty, waterproof Pelican cases complete with a custom foam insert to securely hold your PosiTector instrument.

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Protective Lens ShieldProtective Lens Shield

Pack of 5 thin plastic lens shields to protect PosiTector display from paint overspray. One lens shield included in every PosiTector purchase.

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K-type Thermocouple SensorsK-type Thermocouple Sensors

Hand-held Surface Temperature Probe and Liquid Temperature Probe. For use with PosiTector DPMS probes only.

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Belt ClipBelt Clip

Belt Clip for PosiTector gage bodies

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Resources

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Information