In laboratories where product safety, shelf-life, and quality control are non-negotiable, inconsistent moisture readings can stall production and compromise research integrity. The Aqualab 4TE Water Activity Meter addresses this challenge head-on. Unlike indirect sensors that estimate water activity from correlated parameters, this instrument uses a chilled-mirror dew point sensor to measure water activity directly, delivering lab-grade reliability whether you are at the production line, the receiving dock, or the bench. With a measurement window of five minutes or less and an accuracy of ±0.003 aw, it removes the guesswork from moisture management and gives your team data they can act on immediately.

Technical Specifications of the Aqualab 4TE Water Activity Meter

The Aqualab 4TE Water Activity Meter is built around a primary chilled-mirror dew point sensor. Every unit is factory-calibrated and supplied with verification standards so that accuracy can be confirmed independently. Below are the core specifications presented line by line for quick scanning.

• Water Activity Range: 0.0300 to 1.0000 aw

• Water Activity Resolution: 0.0001 aw

• Water Activity Accuracy: ±0.0030 aw

• Water Activity Repeatability: 0.0010 aw

• Sensor Type: Chilled-mirror dew point

• Moisture Content Accuracy: 0.1%–0.5% (moisture content basis)

• Moisture Content Repeatability: 0.02%

• Temperature Range: 15.00 °C to 50.00 °C

• Temperature Resolution: 0.01 °C

• Temperature Accuracy: ±0.10 °C

• Measurement Time (Fastest): 60 seconds

• Measurement Time (Typical): Approximately 5 minutes

• Instrument Length: 26.7 cm (10.5 in)

• Instrument Width: 17.8 cm (7.0 in)

• Instrument Height: 12.7 cm (5.0 in)

• Enclosure Material: POLYLAC PA-765 (ABS) flame-retardant

• Display: 64 × 128 graphical

• Power Requirement: 110–220 VAC, 50/60 Hz

• Sample Cup Capacity: 14 mL (0.47 fl oz)

• Operating Temperature: Minimum 4.0 °C, Maximum 50.0 °C

• Operating Environment: 0%–90% relative humidity, non-condensing

• Data Interface: RS232A compatible, 8-data bit ASCII, 9600 baud

• Data Storage Capacity: Up to 10,000 secure data points with time, date, and user information

Standard Accessories Included with the Aqualab 4TE Water Activity Meter

• Calibration Certificate

• Power Cord

• USB A to USB B Cable

• 50 Disposable Sample Cups

• AQUALAB Cleaning Kit

• Two Vials of Verification Solutions

• Operating Manual

Items Excluded from the Standard Package

• Additional disposable sample cups beyond the initial 50

• Extra verification solution vials beyond the two supplied

• External printer for RS232 output

• Calibration services beyond the factory certificate

Pre-Installation Requirements for the Aqualab 4TE Water Activity Meter

• A stable, level bench space with clearance for the 26.7 cm × 17.8 cm footprint

• A grounded power outlet supplying 110–220 VAC, 50/60 Hz

• Ambient room temperature maintained between 4 °C and 50 °C

• Relative humidity below 90%, non-condensing

• Access to a computer with a USB port for data transfer (cable included)

Key Benefits: Why the Aqualab 4TE Water Activity Meter Solves Real Lab Problems

Struggling with variable sample separation or inconsistent moisture results across different technicians? The Aqualab 4TE Water Activity Meter eliminates operator-dependent variability by using a primary dew point measurement rather than a secondary correlation. Because the sensor reads water activity directly, results are repeatable across users, shifts, and locations—so your quality assurance team can trust the number on the screen without re-running the sample. For laboratories in Bangladesh seeking a dependable supplier for this instrument, Optimum Solution provides local procurement and support, while the manufacturer’s official product page offers deeper technical documentation and application notes.

Time-consuming verification is another pain point the Aqualab 4TE Water Activity Meter directly addresses. With typical readings in under five minutes and a fastest response of 60 seconds, batches that previously queued overnight can be cleared within a single shift. This speed does not come at the cost of stability: the internal temperature control minimizes ambient fluctuations, allowing you to compare samples at different temperatures or run accelerated shelf-life studies without waiting for the room to equilibrate.

Equipment downtime often stems from difficult cleaning or contamination that goes unnoticed. The flip-open chamber design of the Aqualab 4TE Water Activity Meter lets users inspect and clean the measurement cell quickly, catching residue before it affects readings and reducing unplanned stoppages from routine maintenance. For facilities that need to verify performance independently, the included salt standards allow anyone on the team to confirm accuracy at any time, reinforcing data integrity without relying on external calibration services.

Features That Support Accuracy and Efficiency in Daily Use

• Direct dew point measurement provides superior accuracy and stability compared with capacitive or indirect sensing technologies

• Internal temperature control supports testing at the line, in the warehouse, or on the receiving dock without compromising measurement quality

• Minimal training requirement means new users can obtain reliable results quickly, keeping the team focused on decisions rather than instrument complexity

• On-board diagnostics and individual user setup allow administrative control over calibration and sample data

• Portable construction at 3.1 kg (6.8 lb) makes it practical to move between laboratory and field locations

Warranty and Support for the Aqualab 4TE Water Activity Meter

Every unit is covered by a one-year manufacturer’s warranty on parts and labor. Technical support, installation assistance, and operational training are available to help your team integrate the instrument into existing workflows. Replacement parts and consumables remain available throughout the product’s service life, protecting your investment over the long term.

Call to Action: Request a Quotation or Technical Datasheet

Ready to bring direct, five-minute water activity measurement into your laboratory? Contact our team to request a quotation, obtain a technical datasheet, or discuss a customized configuration tailored to your specific sample types and throughput requirements. The Aqualab 4TE Water Activity Meter is available with local support and can be specified to meet your compliance and reporting needs.