• Water activity meter

Water activity meter

AW-meter for all kinds of samples, regardless of being liquid, solid or jelly-like. With its ergonomic design and touch-screen function, water activity measurements are more simple than ever before.

The partial temperature-regulation and the integrated sample surface temperature measurement allow precise and reproducible measurement values. Additionally, different measuring modes are available.


  • Fast mode for a measurement in max. 10 minute
  • Partially thermostatic chamber
  • SD-card for a simple data management
  • Reusable SAL-T verification standards
Current Supply 5 VDC, +/-6%, max. power consumption 10W
Power Supply / Mains 90……264 VAC 50/60 Hz
Display 4.3" LC-Display , color
Communication USB for PC / Drucker (Advanced)
SD/SDHC-card (Basic and Advanced)
Housing Two-part PC/ABS housing, Weight: 2.8kg
Dimensions (L x W x H)= 200 x 285 x 105mm
Volume measurement chamber 15mL
Dimensions Sample Cup Durchmesser 30mm x Höhe 14mm
Protection Class IP22
21CFR 11 Partially Compliant
  Water Activity Temperature
Measurement Principle Resistive Electrolytic Surface-IR and NTC
Measurement Range 0.030……1.000aw 5……45°C (41……113°F)
Calibration Range 0.110……0.970aw N/A
Resolution 0.001aw 0.1°C
Accuracy +/-0.005aw within cal. range +/-0.15°C
Precision +/-0.003aw within cal. range +/-0.1°C
Repeatability +/-0.002aw within cal. range N/A
Temperature Control Programmable measurement temperature in the range of 15……30°C (59……86°F)*
Calibration Points (%rH) 11%, 33%, 53%, 58%, 75%, 84%, 90%, 97%