1）The portable water activity meter employs the ERH water activity testing method. It measures water activity by detecting the equilibrium state achieved between the surface of a water-containing item and the surrounding ambient gas. 

2）Water activity is measured within 5-10 minutes with an accuracy of ±0.015 aw. 

3）Equipped with a built-in lithium battery, it is highly suitable for quality control personnel to carry and use for on-the-spot measurements anytime, anywhere. Manufacturing enterprises without specialized laboratories can also utilize it for rapid testing. 

Product Features 

1）Compact and portable design for easy carrying; 

2）Rapid measurement speed, typically requiring only 5-10 minutes per sample; 

3）Access measurement history at any time; 

4）Two measurement modes: automatic or timed (1-120 minutes); 

5）High-precision sensor imported from the USA ensures superior accuracy and stable performance.

6）Touchscreen operation with adjustable backlight brightness for intuitive human-machine interaction. Multi-point calibration for enhanced result accuracy. 

7）Ultra-quiet cyclic measurement technology specifically designed for ultra-fine powder samples; 

8）Features time setting and factory reset functions; 

Compliance Standards

GB5009.238-2016 National Food Safety Standard: Determination of Water Activity in Food; 

GB/T34790-2017 Grain and Oil Inspection: Instrumental Method for Determining Water Activity of Grain Seeds; 

Application of Water Activity Measurement for Microbial Attributes in Non-Sterile Preparations (USP);

Technical Parameters

Package Configuration