AQUALAB 5TE
The most accurate standard in moisture science, refined.
Water activity and moisture content in 1 minute. Built for the lab floor, connected to the cloud, and ready for whatever compliance demands next.

±0.0030 aw
accuracy
1 min
Reading
±0.0010 aw
Repeatability
AQUALAB 5TE
The culmination of 40+ years of applied moisture science, now with zero-downtime calibration, a 7" glove-ready touchscreen, and AI-ready data export built in.
See it in action
Watch how the AQUALAB 5TE delivers simultaneous water activity and moisture content results — in 1 minute.
AQUALAB Cloud
Every reading. Every product. Every batch. All in one place.
The AQUALAB 5TE automatically syncs every result to the Cloud the moment a reading is complete. Track readings by product and batch, monitor pass/fail status across your facility, and export AI-ready data — all from a single dashboard your entire team can access.
AQUALAB Cloud
Every reading. Every product. Every batch. All in one place.
The AQUALAB 5TE automatically syncs every result to the Cloud the moment a reading is complete. Track readings by product and batch, monitor pass/fail status across your facility, and export AI-ready data — all from a single dashboard your entire team can access.
Close the gap between R&D, production, and QA.
The AQUALAB 5TE doesn't just measure faster. It connects every team to a single trusted source of truth so quality decisions happen at the speed your operation demands.
Built for every team
One precision standard. No gaps.
Whether you're formulating, producing, auditing, or deciding — the AQUALAB 5TE gives every stakeholder the data they need in the format that works for them.
R&D
Get simultaneous water activity and moisture content data in 1 minute so your team can iterate faster, validate earlier, and hand off production-ready specs with certainty.
Production
BlockSwap zero-downtime calibration and instant pass/fail results mean your production floor never waits on a measurement — and never ships outside of spec.
Quality Assurance
21 CFR Part 11 compliant records, searchable audit trails, and granular user access controls give QA teams everything they need to stay audit-ready without extra administrative work.
Management / Executives
AQUALAB Cloud connects your entire operation — from a single lab bench to multiple facilities — so leadership has the real-time visibility to make quality decisions at scale.

Building upon excellence
See what's new in the AQUALAB 5TE
Every generation built upon the last. Here's how the 5TE raises the standard.
Ready to upgrade?
Talk to an expertFAQs
What is Prop 65?
In 1986, California voters approved an initiative to help them make informed decisions about the products they buy. That initiative became known as Proposition 65. Proposition 65 requires the state of California to publish a list of chemicals known to cause cancer/ reproductive harm. You can learn more about Prop 65 here.
Why do AQUALAB products have a Prop 65 warning?
AQUALAB is required by California law to post a warning on any product that might be sold in California if it contains or might contain one of the more than 900 chemicals known to the state of California to cause cancer and/or reproductive harm. Because consumers learn about our products from our website, we are required to post these warnings on the product web pages as well. California residents are used to seeing these notifications on many products, including household items, electrical wires, electronics, jewelry, dishes, flashlights, cosmetics, skincare products, and much more. People who live outside the state of California may be surprised and alarmed by these notifications. It is important to know that nearly all electronic products require the notification label even though the chemicals involved may only be potentially harmful when eaten in large quantities.
Are AQUALAB products safe?
A Prop 65 warning does not necessarily mean a product is in violation of any product safety standards or requirements. Because AQUALAB sources manufacturing materials from other suppliers, we provide the warning in order to acknowledge that AQUALAB products may contain one or more of the chemicals listed. However, it's likely that those chemicals are in such small amounts that they would not require a warning under California law. AQUALAB provides this notice as a precaution and to comply with Prop 65's disclosure requirements — not because we have reason to believe our products pose a health risk.
How can I minimize moisture migration in hygroscopic products during sampling?
The best approach is to put the water activity instrument and the sample into controlled humidity conditions. Use a glove box, or get the sample inside the chamber as quickly as possible to prevent water uptake from the environment. With an instrument that maintains the seal in the chamber, it’s possible to perform consecutive readings. But if the instrument requires pulling out the sample to take a new reading, the water activity will continually change as the sample takes up more and more moisture.
Is the whole tablet measurement of value?
It depends if the tablet is non-coated or coated. If the coating material can absorb water, there is a critical water activity where the coating material will begin to break down. Thus, if monitoring that aspect of the product, then reading the water activity of a whole tablet would be important.
Would you recommend breaking up a tablet with a mortar and pestle?
A mortar and pestle is a valuable tool for sample preparation because it breaks things apart without being too excessive. You can achieve the same effect with a coffee grinder or food processor, but use only a couple of quick pulses. Process just enough to break the sample apart without grinding it.
Downloads and documents
Shop accessories

Water activity standards
Certified salt standards for verifying water activity accuracy and repeatability across instruments, users, and locations. Each box contains 50 tubes.

Disposable sample cups
Single-use sample cups designed to prevent cross-contamination and ensure consistent, accurate water activity and moisture measurements.

Single-use cleaning swabs
Disposable swabs designed for quick chamber cleaning and contamination control between water activity or moisture measurements.
Technical specifications
Measurement specifications
Water Activity
Range:
0.0300 - 1.0000 aw
Resolution:
0.0001 aw
Accuracy:
±0.0030 aw
Repeatability:
±0.0010 aw
Drift:
±0.0020 aw
Sensor type:
Chilled-Mirror Dew Point
Moisture Content
Range:
0.00 - 100.00 % MC
Resolution:
0.01 % MC
Accuracy:
±0.5 % of moisture content
reference
Repeatability:
0.01 %
Sensor type:
Secondary method - uses
moisture sorption isotherm and water activity
Temperature
Range:
15.00 – 50.00 °C
Resolution:
0.01 °C
Accuracy:
±0.1 °C
Read Time
Minimum:
60s
Typical:
5m
READING MODES
- 60 seconds
- Standard
- Continuous
- Low emitting
- ISO 18787
Physical specifications
Case Dimensions
Height:
14.7 cm (5.8 in)
Width:
32.5 cm (12.8 in)
Depth:
29.2 cm (11.5 in)
Case Material
Polycarbonate-ABS (PC-ABS)
Barrel Connector Power Input:
24.0VDC 3.75A 90W (Center positive)
External Power Supply Input:
100-240VAC~1.4A 50-60Hz
Sample Cup Capacity
7.5 mL (0.25 fl oz), partially full, recommended 15 mL (0.51 fl oz), full
Weight
3.0 kg






