Elcometer 319 Dewpoint Meter with Bluetooth

Elcometer 319 Dewpoint Meter

Product Description

The Elcometer 319 Dewpoint Meter is designed to measure and record all relevant climatic parameters required to determine whether the conditions are suitable for painting.

The versatile gauge can be used as a hand-held dewpoint meter or as a remote data logging monitor1 and is able to measure and record the following climatic parameters:
• Relative humidity
• Air temperature
• Surface temperature
• Dewpoint temperature
• TΔ (the difference between surface temp & dewpoint)
• Dry Bulb temperature
• Wet Bulb temperature
• External temperature correction (K-type)
• Specific humidity

Quick, Simple and Easy-to-Use
• The Elcometer 319 Dew Point Meter features both manual and automatic data logging in one gauge1, with integrated magnets allowing the gauge to be attached to a substrate during remote logging. Its rapid response time and intuitive menu structure make measuring climatic conditions quick and easy.
• Adjustable limits can be set for each measurement parameter which triggers visual and audible alarms whenever a limit is exceeded, ideal for use in paint booths.

Flexible and Versatile
• Using external probes, the versatile gauge can also be used as a thermometer – ideal for measuring temperature of paint prior to application and to measure surface temperature during remote logging.

It’s what you do with the data that counts
• Via Bluetooth® or USB, the Elcometer 319 can be connect to a PC, Android™ or iOS mobile device to download data into an inspection application or ElcoMaster®. Data can then be sent to colleagues and clients in real-time and instant professional inspection reports can be generated at the press of a button.

Large easy to read measurements in degrees °C or °FView up to 5 user selectable statistics on screenReview individual readings


Features of the Elcometer 319 Dewpoint Meter


• Meets ISO 8502-4

• Each instrument is supplied with a Calibration Certificate

•  All readings are time & date stamped



• Easy menu-driven user interface in multiple languages

• Clear, illuminated display showing up to five user-defined parameters

•  Arrow indicators show temperature trends

• Hold/freeze function allows manual readings to be reviewed before being added into the memory



• Can be used as a hand-held dewpoint meter or as a remote data logging monitor1

• Magnetic Surface Temperature Probe allows measurement of surface temperature during remote logging

• Liquid temperature probe transforms the gauge into a thermometer



• Safe use in climates ranging between -20°C and +80°C

• Waterproof and dust proof with fully sealed sensors – rating equivalent to IP66

• Re-engineered sensors have greater durability for an extended life



• Data can be downloaded to a PC via USB or Bluetooth® and evaluated using ElcoMaster® Software1

• Powered by either two AA batteries (for up to 400 hours2 use) or directly via the USB cable

• Intelligent memory calculates total available logging time when using batches

• Stores 25,000 records in up to 999 batches1

1 Model T only
2 Based on one reading every 10 minutes in logging mode.

The Elcometer 319 Dewpoint Meter can be used in accordance with:

• BS 7079-B4*
IMO MSC.215(82)
IMO MSC.244(83)
ISO 8502-4
US Navy NSI 009-32
US Navy PPI 63101-000

* Standards not in bold have been superseded but are still recognised in some industries




ModelModel SModel T
Part NumberG319—-SG319—-T
Reading Parameters – RH, Ta, Ts, Td, TΔ, Tdb, Twb1, SH1
Statistics – number of readings, standard deviation, mean, coefficient of variation, minimum, maximum
Dustproof & Waterproof Gauge with Fully Sealed Sensors – equivalent to IP66
Integral Magnets – secure the gauge during logging
High/Low Limits – audible, visual, red/green LED alarms can be set against any or all parameters.
Multilingual Menus
Backlight- user selectable
K-Type Connector for External Measurement
Memory – with reading and statistic reviewLast 10 records25,000 records in 999 batches
Manual Logging
Interval Logging2 Adjustable between 1 second and 1 hour
Data Output  

Bluetooth® to computer, Android™ & iOS* devices


ElcoMaster® software & USB cable



 Temperature RangeAccuracyResolution
Gauge#-20 to +80°C±0.5ºC0.1ºC
Air Temperature (Ta)-20 to +80°C±0.5°C30.1ºC
Surface Temperature (Ts)-20 to +80°C±0.5°C0.1ºC
External K-Type Thermocouple (Te)-40 to +200°C±0.5°C40.1ºC
Relative Humidity (RH)0 to 100%RH±3%RH50.1%
Gauge & LCD Operating Range-20°C to +80°C  
Power Supply2 x AA 1.5V Batteries or via USB Cable 
Battery Life

Manual Mode: Greater than 40 hours (Backlight Off)

Interval Logging: up to 400 hours (1 reading every 10 minutes)

Dimensions180 x 75 x 35mm  

1 Calculated Value
2 With Part Number T31920162
3 Accuracy ±0.75°C below 10°C
4 Accuracy ±2°C with K Type probes supplied by Elcometer
5 At 1m/s
# Do not expose the gauge to temperatures outside the gauge and LCD operating range
+ Model T only
• Certificate supplied as standard

Packing List

  • Elcometer 319 Dewpoint Meter
  • 2 x AA Batteries
  • Wrist Strap
  • Carry Case
  • Calibration Certificate
  • USB Cable+
  • ElcoMaster® Software+
  • Operating Instructions

Data Sheet



The Elcometer 319 Dewpoint Meter can be used in accordance with:

• BS 7079-B4*
IMO MSC.215(82)
IMO MSC.244(83)
ISO 8502-4
US Navy NSI 009-32
US Navy PPI 63101-000

* Standards not in bold have been superseded but are still recognised in some industries



Part NumberDescription
T31920162Magnetic Surface Temperature Probe; -40 to +80ºC
T9996390-Liquid Temperature Probe; -200 to +1100ºC
T99921325USB Cable
T99916063Wrist Strap
T99923480Protective Carry Case/Pouch

Instruction Manual



The Elcometer 319 Dewpoint Meter can monitor and record all of the key climatic parameters simultaneously, telling you if conditions are suitable for painting.

0:00 – Why we measure climatic conditions before painting
1:50 – Introducing the Elcometer 319
3:34 – How to use the Elcometer 319
4:58 – Interval Logging with Elcometer 319T
5:46 – ElcoMaster and the Elcometer 319

If a coating is applied in the wrong climatic conditions this can affect its performance, resulting in flaws, problems with coating adhesion, and ultimately coating failure. This is why key climatic parameters should be monitored before and during application, to ensure conditions are suitable for painting.

For a long time this was and still is done using a whirling hygrometer, also known as a sling psychrometer, which measures the wet bulb and dry bulb temperature of the air, in order to then calculate the relative humidity and dewpoint temperature. Typically, you’d then use a separate thermometer to measure the surface temperature, in order to calculate the Delta T.

But with multiple pieces of equipment, and the need to use conversion tables and calculations to obtain your results, surely there’s a more effective way to monitor climatic conditions than this.

There is: the Elcometer 319 Dewpoint Meter.

Whether using as a handheld dewpoint meter, or as a remote data logging monitor, the Elcometer 319 can monitor and record all of the key climatic parameters simultaneously, telling you if conditions are suitable for painting.

The Elcometer 319 is equipped with an air temperature and humidity probe, a surface temperature probe, and a K-Type connector, which allows you to connect additional external probes such as magnetic surface temperature probes or liquid temperature probes.

That means this single gauge can measure and record:
• Surface temperature (Ts), the temperature of the surface to be painted;
• Air temperature (Ta), the temperature of the air surrounding the surface to be painted;
• % Relative Humidity (RH), the amount of humidity present in the air compared to the maximum possible, expressed as a percentage;
• Dewpoint (Td), the temperature at which moisture condenses on a surface, calculated from the air temperature and % Relative Humidity;
• Delta T (TΔ), the difference between the surface temperature (Ts) and the dewpoint temperature (Td);
• Wet bulb temperature (Twb), calculated from surface temperature and relative humidity;
• And Dry bulb temperature (Tdb), equal to air temperature.

The gauge is dust and waterproof with fully sealed sensors, equivalent to IP66, and can safely be used in a wide range of climates. And unlike the whirling hygrometers, which you have to spin around to obtain measurements, the Elcometer 319 can be held against the substrate, or even attached using the integrated magnets, allowing you to measure the climatic conditions of the localised area around the substrate being painted, so you can obtain more relevant readings.

While it’s important to monitor the conditions before you start painting, it’s equally important to continue to monitoring whilst the job is ongoing, as conditions change throughout the day. That’s why the Elcometer 319 Model T can continuously monitor and record the conditions as you paint using its Interval Logging feature, taking a reading automatically at rate of your choice between 1 second and 24 hours. If you wish to continuously log the surface temperature, we recommend using an external surface temperature probe with this feature, so it remains securely attached to the surface without needing to be held.

What’s more you can set high and low limits on any and all parameters, so the Elcometer 319 instantly alarms whenever a parameter exceeds specification.

And, once the inspection is done, every reading of every climatic parameter can be transferred via USB or Bluetooth to ElcoMaster®, Elcometer’s free data management software for Android and Apple mobile devices, or PC, allowing you to further analyse the data and create professional inspection reports instantly.

Thanks to ElcoMaster® it’s even possible to remotely monitor the Elcometer 319 live, while it’s logging the conditions, creating a mobile climate station. And by setting limits within ElcoMaster®, the moment one of the parameters falls out of specification, as long as you’re connected or within Bluetooth range, you’ll be able to see instantly.