PosiTector DPM L Dew Point Meter Logger
The PosiTector DPM L is a dew point data logger that measures and records six environmental parameters for up to 200 days, ideal for climate control on steel surfaces. It offers mobile connectivity, internal storage, and compliance with ISO and ASTM standards.
The PosiTector DPM L is a dew point meter logger designed to magnetically attach to steel structures and continuously monitor environmental conditions for up to 200 days. It is the perfect solution for controlling climate, humidity, and temperature in surface preparation projects according to ISO 8502-4 and other international standards.
What is the PosiTector DPM L and what is it used for?
The Defelsko PosiTector DPM L logger monitors six key environmental parameters:
- Relative humidity.
- Air temperature.
- Surface temperature.
- Dew point.
- ΔT (difference between surface temperature and dew point).
- Wet bulb temperature.
It attaches magnetically to steel structures and records data automatically at programmable intervals from 1 minute to 8 hours.
Data can be viewed via:
- An Apple/Android device using Bluetooth, or
- An Advanced PosiTector body (S/N 784000+).
Main Features of the PosiTector DPM L
- Accurate and Fast Readings
- Fast-response sensors with repeatable results.
- NIST-traceable calibration certificate included.
- Rugged Design
- Sealed housing resistant to dust, impact, and weather (IP65).
- Kensington slot for theft prevention (optional lock).
- 2-year warranty.
- Large Logging Capacity
- 10,000 data sets (60,000 readings).
- Up to 200 days of logging with a CR2032 battery.
- Automatic Reporting
- Generate custom reports from the PosiTector app.
- Share via email, messaging, or cloud storage.
Available versions: DPM L vs DPM L+
| Model | Battery | Battery life | Connectivity | Recommended use |
| PosiTector DPM L | CR2032 | Up to 200 days | Bluetooth | Local logging + mobile viewing |
| PosiTector DPM L+ | AAA | Up to 600 days | Bluetooth + WiFi + USB | Remote monitoring, alerts, and continuous power |


Advantages of the DPM L+
- USB port for continuous power.
- WiFi with automatic hourly upload to PosiSoft.net.
- Email alerts when a parameter exceeds limits.
- Ideal for unattended sites or long-term monitoring.
Data Access: Local or Remote
1) On-site Access (DPM L and DPM L+)
Using the PosiTector app (iOS/Android):
- View live data.
- Start or stop logging.
- Download reports.
- Configure intervals.
- Sync with PosiSoft.net.
2) Remote Access (DPM L+ only)
Via WiFi:
- Automatic data upload to PosiSoft.net.
- Monitor from any PC/Mac.
- Receive email alerts.
- Real-time graphs.
- Share access with authorized users.
Benefits of the PosiTector DPM L for Industrial Work
- Continuous monitoring of critical environmental conditions.
- Complies with ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7, US Navy NSI 009-32.
- Independent logging without operator intervention.
- Ideal for industrial painting, coatings, inspection, and maintenance.
Frequently Asked Questions (FAQ)
What is the difference between the PosiTector DPM L and DPM L+?
The DPM L+ adds WiFi, email alerts, USB power, and up to 600 days of autonomy, making it ideal for remote and continuous monitoring.
What types of work is it recommended for?
Environmental control for industrial painting, surface preparation, corrosion monitoring, and projects where weather affects coatings.
Does it comply with international standards?
Yes. It meets ISO 8502-4, ASTM, SSPC, Navy NSI 009-32, and other inspection standards.
How can I access the logged data?
Via the PosiTector app using Bluetooth or remotely via WiFi (DPM L+).
Where can I buy the PosiTector DPM L?
It can be purchased directly via the “Request Quote” button at the bottom of the page.
References
| Reference | Description | Buy |
|---|---|---|
| DEF-DPML | Dew Point Meter Logger | Request quotation |
| DEF-DPML-PLUS | Dew Point Meter Logger DPML PLUS | Request quotation |