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T: 1 800 463-4363
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Water activity meter Biotechnology

Water activity meter

Product Code:LabMASTER-aw

Need more Info? (514) 354-2511 - 1-800-463-4363

Best practice water activity meter. Solid, jellylike or liquid sample can be measured reliably in a temperature range of 0-50°C without any limits.

Our cutting-edge and unique sensor technology for water activity measurement, supported by a full temperature-controlled measurement chamber, provides the pre-requisite for best accuracy and reproducability.


  • Full temperature-control for highest accuracy
  • Reusable SAL-T calibration standards
  • Automatic equilibrium detection to ensure best repeatability and comparability of measurement values
  • 21CFR11 complaint user management


Measurement Specifications

  Water Activity Temperature
Measurement Principle Resistive Electrolytic NTC
Measurement Range 0.030……1.000aw 0…50°C (32…122°F)
Calibration Range 0.040……1.000aw N/A
Resolution 0.001aw 0.1°C
Accuracy +/-0.003aw within cal. range +/-0.2°C
Precision +/-0.002aw within cal. range +/-0.1°C
Repeatability +/-0.001aw within cal. range N/A
Temperature Control Programmable measurement temperature in the range of 0……50°C (32……122°F)
Calibration Points (%rH) 4%, 6%, 11%, 33%, 53%, 58%, 75%, 84%, 90%, 97%, 100%


Power Supply 90……260 VAC 50/60 Hz
Display LCD, 240 x 480 LED dots with background lighting
Communication RS-232 and USB 1.0 for PC / printer
Internal bus system for LabPartner-aw
Housing Painted steel housing, weight 10kg
Dimensions (L x W x H)= 268 x 392 x 170mm
Volume measurement chamber 15mL
Dimensions Sample Cup Diameter 30mm x Height 14mm
Protection Class IP21
21CFR 11 Compliant
Tags: AW

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