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AQUALAB 4TE Accurate and reliable water activity meter

Updated:2025-03-13

Brand: METER
Model: 4TE
Description: Fast. Precise. First. AQUALAB water activity meters are precision at its finest, leading the market in speed and accuracy.
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Product Details

AQUALAB 4TE Accurate and reliable water activity meter Description：

Speed & accuracy.

The AQUALAB 4TE water activity meter can measure water activity (a_w) in 5 minutes or less with ±0.003 accuracy. AQUALAB instruments are the fastest, most precise water activity meters available.

Measure anywhere

Get lab-quality water activity measurements no matter what step of your process: at the line, receiving dock, processing plant, storage facility—even outside the QC lab. Anywhere you need to test and verify the safety and quality of your products.

Internal temperature control lets you set a measuring temperature between 15 and 50 °C and use the instrument anywhere—even outside the quality control lab.

How it works

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 (a_w) directly, not secondary parameters correlated with water activity. This makes the 4TE extremely accurate, so you can have complete confidence in your 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

Function：

Fast: water activity meter gets readings in five minutes or less

Accurate: ±0.003 a_w

Verifiable: ships 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

AQUALAB 4TE Accurate and reliable water activity meter Specification：

Operating Environment (Sensors)	Range
Measurement Specifications	Water Activity	Range: 0.0300 to 1.0000 a_w Resolution: 0.0001 a_w Accuracy： ±0.0030 a_w Repeatability： 0.0010 a_w Sensor Type： Chilled mirror dewpoint
	Moisture Content	Accuracy： 0.1%–0.5% to moisture content reference* Repeatability： 0.02%
	Temperature	Range： 15.00 – 50.00 °C Resolution： 0.01 °C Accuracy： ±0.10°C
	Read Time	Minimum: ~5 min Typical： ~5 min
Physical Specifications	Case Dimensions	Length： 26.7 cm (10.5 in) Width： 17.8 cm (7.0 in) Height： 12.7 cm (5.0 in)
	Case Material	POLYLAC PA-765 (ABS) with fire retardant
	Display	64 × 128 graphical
	Power	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% noncondensing
	Weight	3.1 kg (6.8 lb)
	Data Communications	USB A and RS-232 serial 9,600–115,000 baud