Portable density meter:
DMA 35
- For quality checks in the field, e.g. on wine and wine must (°Brix, °KMW, Oechsle, Baumé)
- For checking the wort and apparent extract in beer production (°Plato)
- One device replaces all glass hydrometers in your workplace
- For measuring flammable chemicals in hazardous environments
- The only intrinsically safe portable density meter on the market (Ex marking [Ex] II 2 G Ex ib IIB T4)
- Leak-proof sealed housing to withstand rough conditions
- Protection class IP54
- For measuring petroleum samples in hazardous environments
- The only intrinsically safe portable density meter on the market (Ex marking [Ex] II 2 G Ex ib IIB T4)
- Fully complies with the ASTM D7777 and IP 559 standards
- Protection class IP54
- For measuring the specific gravity of sulfuric acid in lead-acid batteries in one second
- Ideal for use in lead-acid battery production and the maintenance of uninterruptible power supply systems (UPS)
- Protection class IP54
- High chemical resistance for use in harsh environments
upon request
Take DMA 35 with you at all times and measure the density and concentration of your sample directly on-site. One portable density meter replaces all the glass hydrometers in your workplace and gives you the accuracy expected from a lab instrument. DMA 35 uses only two milliliters of sample and saves you a lot of time as there is no need to transport the sample to the lab. It is built to withstand the knocks and spills of outdoor use. An RFID interface for quick sample identification and a Bluetooth® interface for convenient data handling in the field are integral parts of the instrument.
Key features
A portable density meter providing accurate results, also under harsh conditions
The splash-proof DMA 35 is made for density and concentration measurement in harsh environments, including outdoor operation, while providing the accuracy expected from a lab instrument. The smart oscillator placement makes sure that gas bubbles move to where they can’t affect your result: outside the measuring cell.

Designed for on-site density measurements
- Leak-proof sealed housing to withstand rough conditions in industrial and field applications
- Additional rubber protection keeps the measuring cell safe
- Strong hard-glass front for a long working life
- Operated via capacitive keys with a sensitivity suitable for use with or without gloves
- Suitable for both left- and right-handed users
- Read RFID tags and start or abort measurements via gesture control: One hand is free to hold you steady when measuring hard-to-reach samples.
- For sample temperatures of up to 100 °C, supporting quick decisions, e.g. in the beer brewing process (measurement on hot wort)
- Smart patented oscillator connection (AT516421 B1) enables replacement in case of cell rupture

Intrinsically safe – for use in hazardous locations
- Intrinsically safe models DMA 35 Ex and DMA 35 Ex Petrol (Ex marking [Ex] II 2 G Ex ib IIB T4) for use in hazardous areas
- The only option available on the market for safe measurements in explosive atmospheres
- DMA 35 Ex is particularly suitable for measuring flammable chemicals.
- DMA 35 Ex Petrol provides excellent resistance to petroleum samples and fully complies with the ASTM D7777 and IP 559 standards.

Fastest filling and measurement – for a huge variety of samples
- Fill all kinds of samples – no matter what the viscosity is – in one second using the built-in manual pump or a syringe.
- No expensive electrical wearing parts: You can easily do all cleaning and maintenance work yourself.
- Measuring cell with inspection window and backlight for convenient inspection of proper sample filling
- The most reliable portable density meter for fermenting beer or wine, due to intelligent oscillator placement (potential bubbles automatically move outside the measuring cell)
- Lock-position of pump preventing sample carryover
- Auto-rotating display for perfect visibility of results at any instrument position
- Influence of viscosity on your density result is automatically corrected: for reliable measurements, also on highly viscous samples

Perfect traceability of density and concentration results
- Storage of up to 250 sample IDs for easy sample identification
- RFID interface for changing measurement settings quickly by reading RFID tags
- Storage of up to 1024 measurement results including time stamp and sample ID
- Wireless data exchange with a PC (csv or txt format) and data export to a printer via Bluetooth® for convenient data handling in the field – no extra software required

Leave your glass hydrometer or pycnometer for a digital density meter
- Measurement directly at the sample container
- Requires only 2 mL of sample, filled via the built-in pump
- Preinstalled and programmable concentration units – no further calculations necessary
- Results available in seconds
- Perfect traceability of results
Calculate your individual savings now:

Quickly determining the state of charge of lead-acid batteries
- Determination of the specific gravity of sulfuric acid
- Used for measurement of sulfuric acid in lead-acid battery production and maintenance of uninterruptible power supply (UPS) systems
- Protection class IP54 and high chemical resistance
Technical specifications
Patents granted | Smart connection of measuring cell: Patent AT516421 (B1), EP3015847 (B1) |
Other special functions | Viscosity correction for reliable measurements, also on highly viscous samples Gesture control for easy one-handed measurements Identification of results outside your specified limits |
Measuring range | Density: 0 g/cm³ to 3 g/cm³ Temperature: 0 °C to 40 °C (32 °F to 104 °F)* |
Accuracy | Density: 0.001 g/cm³ ** Temperature: 0.2 °C (0.4 °F) |
Repeatability, s.d.*** | Density: 0.0005 g/cm³ ** Temperature: 0.1 °C (0.2 °F) |
Reproducibility, s.d.*** | Density: 0.0007 g/cm³ |
Digital Resolution | Density: 0.0001 g/cm³ Temperature: 0.1 °C (0.1 °F) |
Ambient temperature**** | Standard Version, Ampere Version: -10 °C to +50 °C (14 °F to 122 °F) Ex and Ex Petrol version: -10 °C to +40 °C (14 °F to 104 °F) |
Supported measuring units |
|
Sample volume | 2 mL |
Dimensions (L x W x H) | 245 mm x 103 mm x 126 mm |
Data memory | 1024 measured results, 30 measuring methods, 250 sample IDs |
Power supply | Three 1.5 V LR06 AA alkaline batteries |
Weight | 660 g |
Interfaces | Bluetooth®, RFID (both included by default) |
Protection class | IP54 (first digit: 5 – protection against dust ingress; second digit: 4 – protection against splash water from any direction) |
Intrinsic safety of Ex and Ex Petrol version | ATEX: II 2G Ex ib IIB T4 Gb IECEx: Ex ib IIB T4 Gb |
Scope of supply | Portable density meter, filling tube, adapter for syringe filling, syringes, transportation case, rubber protection for measuring cell, three batteries, Allen key, instructions |
Menu language | English, German, Chinese, Japanese, French, Russian, Italian, Portuguese, Turkish, Spanish |
Available options | Elongated filling tube |
* Measurements up to 100 °C possible ** Viscosity <300 mPa•s, density <2 g/cm³ *** according to ISO 5725 **** Sample must not freeze within the measuring cell; Ex and Ex Petrol version: -10 °C to +40 °C (14 °F to 104 °F) |
DMA is a registered trademark of Anton Paar (EM 013414867)
Standards
ASTM
Energy Institute
ISO
Anton Paar Certified Service
- More than 350 manufacturer-certified technical experts worldwide
- Qualified support in your local language
- Protection for your investment throughout its lifecycle
- 3-year warranty
Documents
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Quality Control of Sodium Hypochlorite (NaOCl) Solutions by Density Measurement Application Reports en
-
Weight to volume conversion of cosmetic products by means of density measurement Application Reports en
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Consumables
To find out if you can purchase online from your location, check the online availability below.
Check online availabilityIf you do not find the item you require, please contact your Anton Paar sales representative.

ABS Disc Tag 30mm w. 5mm hole R
DMA 35 Standard | Ex | Ex Petrol | Ampere

ALKALINE BATTERY 1.5 V LR6 AA VARTA
DMA 35 Standard | Ex | Ex Petrol | Ampere

ALLEN KEY 3 MM DIN 911
DMA 35 Standard | Ex | Ex Petrol | Ampere

Black Laundry Tag 30mm R
DMA 35 Standard | Ex | Ex Petrol | Ampere

Bumper Sensor ATMO
DMA 35 Standard | Ex | Ex Petrol | Ampere

DENSITY STANDARD "OCEAN SEAWATER"
DMA 35 Standard

Density Standard Seawater
DMA 35 Standard

Draft tube 180x4x2 PTFE 1x1/4"-28 UNF
DMA 35 Standard | Ex | Ex Petrol | Ampere

FILLING TUBE 600 mm for DMA™ 35 V4
DMA 35 Standard | Ex | Ex Petrol | Ampere

FOAM RING
DMA 35 Standard

Luerconnector ATMO 1/4-28UNF DI=2,5mm
DMA 35 Standard | Ex | Ex Petrol | Ampere

Nipple PVDF ATMO
DMA 35 Standard | Ex | Ex Petrol | Ampere

O-Ring 15x1.6 VITON
DMA 35 Standard

O-Ring 4x2 Extrem Viton 75 +/-5 VB75ETP0
DMA 35 Standard | Ex | Ex Petrol | Ampere

Printer USB/RS232/Bluetooth CMP-20i
DMA 35 Standard | Ex | Ex Petrol | Ampere

RUBBER HOUSING DMA 35 OPERATING PANEL
DMA 35 Standard | Ex | Ex Petrol | Ampere

SPRING FOR PISTON HASTELLOY C22
DMA 35 Standard

Stir Bar PTFE D=3 L=10 CYL
DMA 35 Standard

SYRINGES 2 ml LUER (10 PCS)
DMA 35 Standard | Ex | Ex Petrol | Ampere

UNION NUT INCL. EYE PLATE
DMA 35 Standard | Ex | Ex Petrol | Ampere