Fast water activity meter

AQUALAB speed and accuracy, plus moisture content


Chilled mirror dew point technology – now smart

The AQUALAB 3 is a smart, connected water activity meter that pairs the speed and accuracy of AQUALAB chilled mirror dew point technology with SKALA’s data power. This makes it possible not only to get your final testing numbers quickly, but now you can also manage compliance details for auditors, optimize your moisture margin, and monitor your process in real time to make consistently great product for your customers.

Speed is everything

When it comes to water activity (Aw) measurement, speed is everything. The new AQUALAB 3 is blazingly fast without sacrificing accuracy. Using the primary chilled mirror dew point sensor method, the AQUALAB 3 delivers an actual water activity (Aw) reading—not a “quick” or estimated value—with an average read time of 3 minutes. With this kind of speed, users can use water activity to control their process, calibrate inline NIR, release product more quickly, and run up to 10x more samples through their labs when compared with traditional resistive electrolytic and capacitance polymer sensors.

Powerful connections

The AQUALAB 3 is the first benchtop water activity meter with no screen. It opens up a world of possibilities by connecting the AQUALAB 3 to the devices where people get work done—iPads, computers, even mobile phones. Here’s what the SKALA-connected AQUALAB 3 delivers for your lab:

Automated data collection. No writing, no typing, no data entry. Each piece of data is automatically tagged with technician name, date, time, instrument serial number, and more

Audit-ready readings. Fully documented, audit-ready testing records (Conforms to CFR 21 Part 11; SQF and BRC compliant)

Instant visual pass/fail feedback. Reading is tagged to a specific product and checked against specifications visual alerts for pass, outside control limits, and fail

CofAs in 30 seconds or less. Certificates of analysis generated directly from the documented instrument reading. Just 2 clicks.

*See IT requirements in specifications to ensure that the AQUALAB 3 works for you

Dump downtime

The AQUALAB 3 water activity meter is designed with layers of reliability. It monitors itself and notifies METER support when something doesn’t look right. Your subscription plan includes proactive service: we call you before there’s a serious problem.

And the AQUALAB 3’s chilled mirror dew point sensor and other measurement electronics are contained in a swappable factory-calibrated aluminum block. No loaners and no downtime, because the instrument never leaves your bench.

Ready to get outside the box?

The SKALA-connected AQUALAB 3 is designed for labs that are ready to go beyond a bench full of boxes. Want to know if the AQUALAB 3 is right for you? Talk to an expert to get pricing and calculate your ROI.

Request a quote Contact us Learn more about SKALA

The AQUALAB 3 is a fast, connected water activity meter with moisture content included. Manage compliance for auditors, optimize moisture margin, and make consistently great product.


  • Fast: Water activity readings in 5 minutes or less (most samples). Average read time 3 minutes.
  • Accurate: the chilled mirror dew point sensor offers 0.005 aw accuracy
  • Easy to use: precise measurements, minimal training
  • Expandable: connect and manage multiple AQUALAB 3 instruments with one iPad
  • Repeatable: standards based for repeatability across users and locations
  • Connectable: collect data automatically from non-METER instruments
  • Optional block exchange program includes annual recalibration, extended warranty, and service plan
  • See all water activity readings in real time
  • Set pass/outside limits/fail specs
  • Print batch Certificates of Analysis (water activity readings)
  • Manage supervisor reading approvals
  • Manage batches
  • Statistical Process Control (water activity readings)
  • Set product group specifications (water activity readings)
  • Unique sample identifier



Water activity

Sensor type: Chilled mirror dew point
Range: 0.030–1.000 aw
Resolution: 0.001 aw
Accuracy: ±0.005 aw
Repeatability: 0.002 aw


Controlled at constant 25 °C
Resolution: 0.1 °C
Accuracy: ± 0.1 °C

Read time

Typically 5 min


Case dimensions

Length: 9.2 inches (23.4 cm)
Width: 9.2 inches (23.4 cm)
Height: 5.04 inches (12.1 cm)

Case material

Polycarbonate-ABS (PC-ABS)


11 lbs (5 kg)


Through connection to SKALA Hub

Operating temperature

15-35 °C

Operating environment

0% - 90% noncondensing

Sample dish capacity

7.5 mL recommended (15 mL full)


110–240 VAC
47/63 Hz (Fuse 2A @ 250V)


Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)

IT infrastructure requirements

The AQUALAB 3 is an IIoT device. In order to use it, please consult with your IT department to be sure you have:

- Wi-Fi access in the location where AQUALAB 3 will be used
- An Ethernet port for the Nexus connection
- A Wi-Fi enabled iPad iPad 5th Generation (9.7 inch) with iOS 11.2 or later (iPad may be purchased with your AQUALAB 3)
- Reliable local network and internet connections
- Ethernet and WiFi must be on the same network
- Port 80,443, and 123 enabled

Note: the Nexus and the iPad must be able to communicate with each other on your internal network and with our cloud servers. For more information, please visit https://www.metergroup.com/food/faqs/

California requires the following notice:

⚠️ WARNING: This product may contain chemicals including ethylene glycol, lead, nickel, styrene and cadmium, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov


Have a question or problem? Our support team can help.

We manufacture, test, calibrate, and repair every instrument in house. Our scientists and technicians use the instruments every day in our product testing lab. No matter what your question is, we have someone who can help you answer it.

Email: support.food@metergroup.com

Phone: 509-332-5601

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