AQUALAB 4TE
Accurate and reliable water activity meter
Experience the speed, precision, and reliability that set the standard in water activity (aw) measurement. Discover the AQUALAB 4TE water activity meter—the trusted instrument that revolutionized moisture management in industries worldwide.
Speed and accuracy.
The AQUALAB 4TE water activity meter can measure water activity (aw) in 5 minutes or less with ±0.003 accuracy. AQUALAB instruments are the fastest, most precise water activity meters available.
for readings
Measure anywhere
Get lab-quality water activity (aw) measurements no matter what step of your process, thanks to the 4TE's rugged hardware and internal temperature control. At the line, receiving dock, processing plant, storage facility, or even outside the quality control lab - anywhere you need to test and verify the safety and quality of your products.
aw accuracy
The secret to the 4TE’s speed and accuracy is in its unique chilled mirror dew point sensor. The dew point sensor is a primary measure of water activity. Unlike other water activity sensors, the dew point sensor measures water activity (aw) directly, not secondary parameters correlated with water activity. This makes the AQUALAB 4TE extremely accurate, so you can have complete confidence in your water activity sample readings.
Easy maintenance
AQUALAB 4TE lets you spot contamination quickly with the flip of the lid. The sample chamber can be opened for any easy-to-clean maintenance.
Starter set
All verified AQUALAB 4TE’s are shipped with a calibration certificate, power cord, USB A to USB B cable.
Built for abuse
Take readings in the harshest conditions – on the line, in receiving or shipping areas. Aqualab devices don’t need a pristine lab to consistently deliver quality data.
Long life, good investment
We stand behind our devices for decades. You’ll never be left without support. No pushy upgrade schemes or shady long-term maintenance contracts, just long-term benefits.
In the lead for 40 years
Since our founding in 1983, we’ve stayed laser-focused on moisture management science – and built the industry’s largest body of expertise on the topic.
Any sample, always accurate
92% of the top 100 food companies use Aqualab devices for moisture analysis. Throughout formulation, production and QA — from raw ingredients to final product and anything between.
Feature summary
- Fast: water activity meter gets readings in five minutes or less
- Accurate: ±0.003 aw
- Verifiable: with independent salt standards
- Repeatable: different users, different locations, same result
- Portable: weighs just seven pounds
- Easy to use: water activity meter yields precise measurements with minimal training
- Secure: offers administrative control over calibration and sample data
- Proven: used by more than 90 of the top 100 food companies
What's Included:
- Calibration certificate
- Power cord
- USB A to USB B cable
Usually ships within 2 business days
Education guides
Education guides4 min read
Introduction to water activity (aw): The beginner's guide to water activity's role in food production
Education Guide
Water activity (aw) is directly related to the microbial susceptibility of food products and is correlated with many of the reactions that end shelf life in foods. Learn why water activity measurements in food are so powerful.
Education guides5 min read
The food manufacturer's step-by-step guide to lowering water activity with humectants
Education Guide
There are countless humectants on the market, and many ways to use them profitably — but which one is right for you, and how should you put it to work?
Education guides8 min read
The beginner's guide to measuring yield and waste in food manufacturing
Education Guide
Understanding and eliminating waste is a powerful way to boost profits – but where to start? We recommend exploring these seven common methods for waste reduction.