Water activity meter for liquid, solid or jelly-like samples

Water activity meter

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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 Supply5 VDC, +/-6%, max. power consumption 10W
Power Supply / Mains90……264 VAC 50/60 Hz
Display4.3" LC-Display , color
CommunicationUSB for PC / Drucker (Advanced)
SD/SDHC-card (Basic and Advanced)
HousingTwo-part PC/ABS housing, Weight: 2.8kg
Dimensions (L x W x H)= 200 x 285 x 105mm
Volume measurement chamber15mL
Dimensions Sample CupDurchmesser 30mm x Höhe 14mm
Protection ClassIP22
21CFR 11Partially Compliant
 Water ActivityTemperature
Measurement PrincipleResistive ElectrolyticSurface-IR and NTC
Measurement Range0.030……1.000aw5……45°C (41……113°F)
Calibration Range0.110……0.970awN/A
Accuracy+/-0.005aw within cal. range+/-0.15°C
Precision+/-0.003aw within cal. range+/-0.1°C
Repeatability+/-0.002aw within cal. rangeN/A
Temperature ControlProgrammable measurement temperature in the range of 15……30°C (59……86°F)*
Calibration Points (%rH)11%, 33%, 53%, 58%, 75%, 84%, 90%, 97%