
The Elcometer 319 Dewpoint Meter with Bluetooth (part numbers G319-S and G319-T) measures and records all the climatic parameters needed to determine whether conditions are suitable for painting.
If climatic conditions are wrong when a coating is applied, the coating can fail in service, so monitoring them before and during application protects the work. The Elcometer 319 reads relative humidity, air temperature, surface temperature, dewpoint, the Delta T (the difference between surface temperature and dewpoint), dry bulb and wet bulb temperatures, an external K-type temperature and specific humidity. It can be used as a hand-held meter or, with its integral magnets holding it to a substrate, as a remote data logging monitor. High and low limits can be set against any or all parameters to trigger audible, visual and red or green LED alarms, which is useful in paint booths. A magnetic surface temperature probe allows surface temperature to be logged remotely, and a liquid temperature probe turns the gauge into a thermometer for checking paint temperature before application.
The Elcometer 319 Dewpoint Meter with Bluetooth reads air, surface and gauge temperatures from -20 to +80 degrees C to plus or minus 0.5 degrees C at 0.1 degrees C resolution, an external K-type thermocouple from -40 to +200 degrees C, and relative humidity from 0 to 100% RH to plus or minus 3% RH. The body is dustproof and waterproof with fully sealed sensors, rated equivalent to IP66, and it runs on two AA batteries for up to 400 hours or via USB. Two models are offered: Model S stores the last 10 records, while Model T stores 25,000 records in up to 999 batches, adds interval logging adjustable between 1 second and 1 hour, and outputs via USB or Bluetooth to a computer, Android and iOS device for evaluation in ElcoMaster software. A calibration certificate is supplied as standard.
The Elcometer 319 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 and US Navy PPI 63101-000, the recognised standards for climatic monitoring and surface condensation assessment. It is used by coatings inspectors in marine, offshore, protective coating and shipbuilding work, and is supplied by BAMR, South Africa's authorised Elcometer distributor.
Elcometer 319 Dewpoint Meter with Bluetooth
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.
- Accurate Meets ISO 8502-4. Each instrument is supplied with a Calibration Certificate. All readings are time and date stamped.
- Simple 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.
- Flexible Can be used as a hand-held dewpoint meter or as a remote data logging monitor. Magnetic Surface Temperature Probe allows measurement of surface temperature during remote logging. Liquid temperature probe transforms the gauge into a thermometer.
- Durable 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.
- Powerful Data can be downloaded to a PC via USB or Bluetooth and evaluated using ElcoMaster Software. Powered by either two AA batteries (for up to 400 hours 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 batches.

Also available to buy online at GaugeIt, our online store.
When to use the Elcometer 319 Dewpoint Meter
Use the Elcometer 319 when you need to record every climatic parameter that decides whether a surface is fit to paint, and keep an auditable log of it. It measures air, surface and dewpoint temperatures, relative humidity and more, with each reading time and date stamped to ISO 8502-4.
- 1Logs the full climatic setIt records RH, air, surface, dewpoint, wet and dry bulb and surface temperature difference, so a single instrument covers the whole pre-paint check.
- 2Large traceable memoryThe Model T stores 25,000 records in up to 999 batches with a supplied calibration certificate, which is what underpins a defensible inspection record.
- 3Hand-held or remote loggingIt works in your hand or as a remote data logger with a magnetic surface probe, so you can leave it monitoring conditions during a coating job.
- 4Download by USB or BluetoothData transfers to ElcoMaster on PC, Android or iOS, so reports come straight off the gauge rather than being copied by hand.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
When to use this
When to use the Elcometer 319 Dewpoint Meter
Use the Elcometer 319 when you need to record every climatic parameter that decides whether a surface is fit to paint, and keep an auditable log of it. It measures air, surface and dewpoint temperatures, relative humidity and more, with each reading time and date stamped to ISO 8502-4.
- 1Logs the full climatic setIt records RH, air, surface, dewpoint, wet and dry bulb and surface temperature difference, so a single instrument covers the whole pre-paint check.
- 2Large traceable memoryThe Model T stores 25,000 records in up to 999 batches with a supplied calibration certificate, which is what underpins a defensible inspection record.
- 3Hand-held or remote loggingIt works in your hand or as a remote data logger with a magnetic surface probe, so you can leave it monitoring conditions during a coating job.
- 4Download by USB or BluetoothData transfers to ElcoMaster on PC, Android or iOS, so reports come straight off the gauge rather than being copied by hand.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
Specifications
Specifications
■ = available / compatible with that option or model
| Model | Model S | Model T |
|---|---|---|
| Part Number | G319-S | G319-T |
| Reading Parameters – RH, Ta, Ts, Td, TΔ, Tdb, Twb 1 , SH 1 | ■ | ■ |
| 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 review | Last 10 records | 25,000 records in 999 batches |
| Manual Logging | ■ | ■ |
| Interval Logging 2 | Adjustable between 1 second and 24 hours | |
| Data Output | ||
| USB | ■ | |
| Bluetooth® to computer, Android™ & iOS* devices | ■ | |
| ElcoMaster® software & USB cable | ■ | |
| Certificate | ■ | ■ |
- Reading Parameters
- RH, Ta, Ts, Td, TΔ, Tdb, Twb, SH
- Statistics
- Number of readings, standard deviation, mean, coefficient of variation, minimum, maximum
- Dustproof & Waterproof Gauge
- 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
- Yes
- Backlight
- User selectable
- K-Type Connector
- For external measurement
- Certificate
- Supplied as standard
- Memory - Model S
- Last 10 records
- Memory - Model T
- 25,000 records in 999 batches
- Manual Logging
- Yes
- Interval Logging
- Adjustable between 1 second and 24 hours (Model T only)
- USB Output
- Model T
- Bluetooth Output
- To computer, Android and iOS devices (Model T)
- Gauge Temperature Range
- -20 to +80°C
- Gauge Temperature Accuracy
- ±0.5°C
- Gauge Temperature Resolution
- 0.1°C
- Air Temperature (Ta) Range
- -20 to +80°C
- Air Temperature (Ta) Accuracy
- ±0.5°C
- Air Temperature (Ta) Resolution
- 0.1°C
- Surface Temperature (Ts) Range
- -20 to +80°C
- Surface Temperature (Ts) Accuracy
- ±0.5°C
- Surface Temperature (Ts) Resolution
- 0.1°C
- External K-Type Thermocouple Range
- -40 to +200°C
- External K-Type Thermocouple Accuracy
- ±0.5°C
- External K-Type Thermocouple Resolution
- 0.1°C
- Relative Humidity Range
- 0 to 100%RH
- Relative Humidity Accuracy
- ±3%RH
- Relative Humidity Resolution
- 0.1%
- Operating Range
- -20°C to +80°C
- Power Supply
- 2 x AA 1.5V Batteries or via USB Cable
- Battery Life - Manual Mode
- Greater than 40 hours (Backlight Off)
- Battery Life - Interval Logging
- Up to 400 hours (1 reading every 10 minutes)
- Dimensions
- 180 x 75 x 35mm
- Weight
- 300g
What's in the kit
What's in the kit
Standards
Standards
Accessories
Accessories
| T31920162 | Magnetic Surface Temperature Probe; -40 to +80ºC |
| T9996390 | Liquid Temperature Probe; -200 to +1100ºC |
| T99921325 | USB Cable |
| T99916063 | Wrist Strap |
| T99923480 | Protective Carry Case/Pouch |
Downloads
Videos
Videos
Frequently asked questions
Why is dewpoint important before painting?
The 319 measures the climatic parameters needed to determine whether conditions are suitable for painting. Relative humidity and substrate temperature directly affect coating adhesion and curing, so checking them before application prevents defects.
What is the difference between the Model S and Model T?
Model S records the last 10 readings only. Model T stores 25,000 readings across 999 batches, logs data automatically at intervals from 1 second to 24 hours, and transmits data via Bluetooth to computers and mobile devices or via USB with ElcoMaster software.
Can the 319 measure the surface temperature of what I am about to coat?
Yes. The built-in Ts sensor measures surface temperature from -20 to +80°C with ±0.5°C accuracy. For higher temperatures, connect an optional K-Type thermocouple, which measures up to +200°C.
Does the Model T connect to my phone or computer?
Yes. Model T has Bluetooth connectivity to computer, Android, and iOS devices. A USB cable and ElcoMaster software are also supplied for data transfer and analysis.
How long do the batteries last?
In manual mode with backlight off, battery life exceeds 40 hours. When interval logging is enabled, battery life extends to up to 400 hours at a logging interval of 1 reading every 10 minutes. The 319 uses two AA 1.5V batteries or can be powered via USB cable.
Quote on the Elcometer 319 Dewpoint Meter with Bluetooth by close of business.
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Tell us about your application and we will send a quote with lead time and accessories.

