Water Activity Meter DWA-300
Introduction:
Water activity or aw , indicates the free water content when food is stable, measures the possibility of microbial proliferation.
Food formulators use water activity to predict how much moisture migration will affect their product, so that to choose suitable package and storage method to reduce the usage of antiseptics.
Features:
- DWA-300 water activity is a single-point measurement equipment, adopting high precision sensor
- Professional design ensures stable and reliable performance;
- Reasonable structure design provides easier operation;
- Quick in calibration and measurement: needs only 10 minutes;
- Free from repeated calibration;
- High brightness LCD display;
- Equipped with printer, convenient to record data;
- Long life, high accuracy, solid, liquid, powder are measurable.
Specification :
| Model | DWA-300 |
| Measuring range | Water activity 0-0.980aw (no condensing ) Temperature 0-50℃ |
| Measurement accuracy | Water activity ±0.015 (@25℃) Temperature ±0.5℃ |
| Repeatability | ≤0.015 |
| Temperature coefficient | ≤0.0005/℃ |
| Measurement points | 1 |
| Print method | a.Measurement of the end of print b.Real-time print |
| Display | Large-screen LCD 128×64DOTS |
| Output mode | Micro printer |
| Supply voltage | 220VAC±10% Optional: 110VAC±10% |
| Power consumption | ≤15W |
| Dimensions of main set | 320mm×120mm×340mm |
| Work environment | Temperature 0-50℃ Relative humidity 0-95%RH |
| Package | Inside: Portable aluminum boxes for the meter |
Precise Water Activity Measurement for Quality and Safety: Water Activity Meter DWA-300
Ensure product stability, shelf life, and microbial safety with the Water Activity Meter DWA-300—a high-accuracy, benchtop instrument engineered for food & beverage, pharmaceutical, cosmetic, and agricultural laboratories. Measuring water activity (aw) from 0.00 to 1.00 aw with ±0.003 aw accuracy, the DWA-300 helps prevent spoilage, optimize formulations, and comply with FDA, HACCP, ISO 22000, and USP <1151> standards.
Engineered for Speed, Accuracy, and Regulatory Confidence
The DWA-300 Water Activity Meter uses a high-sensitivity capacitive sensor in a temperature-controlled chamber (typically 25°C ±0.1°C) to deliver stable, repeatable results in as little as 5 minutes. Its intelligent algorithm compensates for ambient fluctuations and sample volatility, while the sealed test chamber prevents cross-contamination and ensures consistent environmental conditions during measurement.
- High Accuracy: ±0.003 aw | Resolution: 0.001 aw – Ideal for critical applications like dried foods, powders, and pharmaceuticals.
- Fast Measurement: 3–10 Minutes – Rapid equilibration with active airflow and temperature stabilization.
- Precision Temperature Control: 25°C ±0.1°C – Complies with standard test conditions (AOAC, ISO 21807).
- Large Color Touchscreen Interface – Displays aw, temperature, time, and stability indicator in real time.
- GLP-Compliant Data Logging – Stores 1,000+ results with sample ID, date, time, and calibration data; USB export to CSV.
- Easy-to-Clean Sample Chamber & Reusable Trays – Minimizes waste and cross-contamination between tests.
Trusted Across Food, Pharma, and Quality Control
Water activity directly influences microbial growth, texture, caking, and chemical stability. The DWA-300 empowers formulators and QC teams to:
Verify shelf life of baked goods, spices, and dried meats
Ensure safety of powdered supplements and APIs
Optimize moisture content in cosmetics and pet food
Support HACCP plans and regulatory submissions
Whether you’re preventing mold in jerky or validating excipient stability, the Water Activity Meter DWA-300 delivers the precision and traceability your quality program demands.
Control moisture. Guarantee safety. Extend shelf life.
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