AwTherm laboratory analyser ROTRONIC


Šifra: AwTherm

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Delivery time: approximately 8 weeks

  • operating range: 1 … 40 °C
  • measuring range: 0.005 … 1.000 AW
  • Accuracy: ±0.005 AW at 10 … 30 °C
  • Power supply: 110 … 230 V / 50 … 60 Hz
  • Display: 8-line touch LCD
  • Standard: ISO 18787
  • Weight: 4.200 g




The AwTherm laboratory analyser from ROTRONIC is a professional, high-end laboratory unit for temperature-stable measurement of water activity.

Its wide range of control allows it to integrate measurements directly into the processing or storage process.

An additional advantage of AwTherm is the detachable measuring head. This allows you to calibrate the connected sensor or set adjustments to achieve high accuracy.

The “ Island-operation mode” display function makes the AwTherm easyto operate and transparent.


AwTherm features

  • High accuracy with high temperature stabilisation
  • wide range of temperature control
  • outstanding repeatability
  • excellent long-term stability
  • replaceable reference probe for calibration or cleaning
  • Compatibility with HYGROMER® IN-1 probes/types
  • fastest measurements with AwQuick
  • easy operation via touch interface
  • Compliance with ISO 21807/EMC 2008/108/EC/IEC EN 61010-1: 2010


Why measure water activity?

Free water in a product affects its microbiological, chemical and enzymatic stability. Too much free water will spoil the product; too little water can damage the characteristics of the product.

Water activities Contaminants

AW=0.91 … 0.95 many bacteria
AW=0.88 many yeasts
AW=0.80 many moulds
AW=0.75 halophytic bacteria
AW=0.70 osmophilic yeasts
AW=0.65 xerophilic mould

Measuring the activity of water gives useful information on properties such as cohesion, shelf life, solidification or flowability of powders, tablets and/or pharmaceutical-cosmetic products, etc.


The consignment includes

  • AwTherm including AwT-MHS
  • Awt-PS14 or Awt-PS40
  • AC adapter
  • USB cable
  • instructions for use
  • HW4-P-Q-V3-Code or new product HW5


AwTherm accessories


ROTRONIC offers the state-of-the-art HygroLab C1 laboratory device for measuring water activity from four separate probes. For measuring water activity in cheese, meat, tobacco, building materials, animal feed and pharmaceuticals, we recommend the use of several stationary probes or insertion probes.


For more information, see the datasheet in the Documentation tab.


Areas of use, applications

  • food industry
  • pharmaceutical industry
  • cosmetics industry



“The importance of water potential measurements – the water activity meter”


Other names: Aw Therm, Aw-Therm, Aw_Therm