The portable Humidity Detector enables the precise determination of water activity (aw) in various products. It measures water activity in the range from 0 to 1.0000 aw and temperatures from -10 to 50°C / 14 ... 122°F. The aw value indicates the proportion of free, unbound water in organic products such as foodstuffs or pharmaceuticals and is referred to as water activity. This value is crucial for assessing the shelf life and quality of products, as it influences the growth of microorganisms, molds and yeasts. In contrast to the total moisture content of a product, the Aw value is largely responsible for microbial stability.

The Humidity Detector delivers highly accurate results within just 3 to 5 minutes and works with precise sensors that ensure an accuracy of ±0.015 aw in the temperature range of 10 to 30°C / 50 ... 86°F. It has three different measurement modes: normal mode, fast mode and continuous display mode. Calibration can be performed with one or more points (two, three or four points). The 2.8" TFT colour display ensures clear and intuitive operation, while the portable design and supplied instrument case allow flexible use in the field.

The device also offers extensive data management functions and can store up to 5,030 data records. The measurement results can be easily transferred to the software and output via the micro USB port. Power is supplied either via a 5V USB cable or four AA batteries, making it ideal for different environments and longer test times. Typical applications for the Humidity Detector include quality control in the food industry, pharmaceutical production processes, food and drug research institutes, the cosmetics industry, animal feed production, biological research centers, inspection and quarantine services and other laboratory analyses, for example in the tobacco and paper industries.

In addition to the sensor and the sample holder, the scope of delivery includes ten measuring beakers, the software, a USB cable, operating instructions and a practical carrying case. With the Humidity Detector, users receive a high-quality, portable measuring device for fast and precise determination of water activity, which is characterised by user-friendliness, versatile application options and maximum measuring accuracy.