Water activity is a key parameter for product shelve life, microbiological and chemical stability and more. Where foods are manufactured, shipped and stored around the world, tight control of water activity helps to achieve necessary shelf life goals and food safety. Choose from our range of water activity meters to meet your quality control requirements.
LabStart-aw | LabSwift-aw | LabTouch-aw | LabMaster-aw | |
|---|---|---|---|---|
 |  |  |  | |
| Measurement principle | Resistive Electrolytic | Resistive Electrolytic | Resistive Electrolytic | Resistive Electrolytic |
| Measurement range | 0.03–1.00 aw | 0.03–1.00 aw | 0.03–1.00 aw | 0.03–1.00 aw |
| Calibration range | 0.33–0.75 aw | 0.11–0.90 aw | 0.110–0.97 aw | 0.04–1.00 aw |
| Calibration points | 33%, 75% | 11%, 33%, 53%, 58%, 75%, 84%, 90% | 11%, 33%, 53%, 58%, 75%, 84%, 90%, 97% | 4%, 6% 11%, 33%, 53%, 58%, 75%, 84%, 90%, 97%, 100% |
| Accuracy | +/-0.03 aw within cal. Range | +/-0.01 aw within cal. Range | +/-0.005 aw within cal. Range | +/-0.003 aw within cal. Range |
| Temperature control | N/A | N/A | Programmable measurement temperature in the range of 15–30°C | Programmable measurement temperature in the range of 0–60.00°C |
| 21CFR11 | Not compliant | Partially compliant | Partially compliant | 21CFR11 compliant Audit Trail 21CFR11 compliant User Management |