Water activity indicates the amount of unbound water (free water) in a material. It is an important factor in food preservation and quality control - for example for the shelf life of meat or other foods. This quality factor, also known as the aw value, depends on the water vapor pressure in the material, the current temperature and the water vapor pressure in the environment.

The new AW4 meter allows quick and easy measurement of water activity. The Aluminum cell cup in this design allows aW measurement for very small sample amounts. In addition, this design also allows easier sensor replacement.

*For larger sample size check out our AW1, AW2 and AW3 meters.

Many products can be measured with our AW meter, such as pharmaceuticals, food and meat products, butter, fruit mixtures, spices, granules, PVC, mushrooms, xylitol or seasoning.

The measuring device is a laboratory device and enables measurements in accordance with EN ISO 21807. With our aw value measuring instruments, the shelf life and quality can be secured and controlled.

Features:

• Aw value, relative humidity, absolute humidity, dew point, equilibrium moisture content
• Fast adjustment behavior
• Long-term stable humidity and temperature sensors
• Easy data storage on the portable moisture meter
• Optimal documentation of your quality
• portable handset
• High measuring accuracy
• AW4 kit includes: Humimeter with aluminum water activity measuring cell 25 ml with attachable humidity-temperature sensor with 2 meter connection cable - with accessories included: 10 pcs. plastic inserts PP 25 ml for the measuring cell, calibration ampoule set, factory calibration certificate, plastic case + LogMemorizer 3.0 recording and analyzing software with USB interface cable.

Specifications: