The PCE-WAM 10 is a portable humidity detector designed for measuring water activity, which indicates the bioavailable water for microorganisms in various substances. It’s particularly useful in the food industry for shelf-life testing. The device has a measurement range of 0.01 to 1 aw with an accuracy of ±0.03 aw. It includes 3 sample trays for convenience and operates on 2 AAA batteries.
Each type of microorganism has a minimum water activity value below which no growth is possible. The higher the aw value of a food, the more perishable it is. Bacteria typically require a water activity of over 0.98, but significantly lower water activity of up to 0.6 can be tolerated by extremely halophilic bacteria, for example.
Water Activity | |
Measurement Range | 0.01 aw … 1 aw |
Resolution | ±0.01 aw |
Accuracy | 0.03 aw |
Temperature | |
Measurement Range | 0 °C … 50 °C |
Resolution | 0.1 °C |
Accuracy | ±1 °C |
General Technical Data | |
Display Type | LCD |
Sensor | Non-conductive moisture sensor |
Battery Type | AAA Battery (1.5V) |
Menu Language | English |
Protection Class | IP20 |
Weight | 244 g / 0,5 lb |
Device Weight with Accessories | 930 g / 2 lb |
Device Weight with Packaging | 980 g / 2.1 lb |
Dimensions (L x W x H) | 150 x 68 x 68 mm / 5.9 x 2.6 x 2.6 inch |
Additional Dimensions | Inner diameter of sample trays: 33mm / 1.2 inch |
Operating Conditions | 0 … 50 °C, 0 … 95% r.H. |
Storage Conditions | 0 … 50 °C, 0 … 95% r.H. |