Syntilab Aw-meters – models

Syntilab measuring instruments are designed, developed and manufactured in France. The new Activ W510 and Activ W810 Water Activity Meters feature modern and innovative technology and are suitable for both laboratory and industrial environments.

  • Fanless chilled mirror technology
  • Single or double stage thermoelectric module
  • Built-in temperature control for the Activ W810
  • Optional connectors for external circulation cryothermostat for Activ W510
  • Robust, fast, accurate
  • Easy cleaning, limited fouling
  • User-friendly interface
  • Automated traceability with “Linko” PC software provided
  • Low operating costs
Activ W810D Activ W810 Activ W510R Activ W510


The Activ W510 and Activ W810 models are laboratory meters that perfectly meet the quality and speed standards sought by professionals. Ideally suited for R&D and quality control environments, they are also designed to meet the needs of intensive industrial use on the production line. They are robust and require little maintenance. The technology is based on the chilled mirror principle, which is more precise, faster, more linear and more durable than other technologies.


The technology used here is patented by Syntilab. It allows fast and accurate measurements without the need for an internal ventilation system. Going fanless is a real technological advance that significantly simplifies the maintenance of a chilled mirror Aw-meter. Its implementation is based on two core elements:

  • a specific geometry and the optimization of the measuring chamber with a minimized internal volume.
  • efficient modeling of heat transfer.

The thermoelectric module for cooling the mirror can be single or double stage depending on the model. The double stage configuration allows measuring highly dehydrated products


One of the main advantages of fanless technology is the limited fouling as well as a higher long-term reliability, as the measuring chamber does not include any moving parts. Its cleaning is facilitated by a direct access to the various elements without disassembly. The micro-measuring chamber as well as the cup receptacle/ dish holder are made entirely of 316L stainless steel which ensures optimum mechanical and chemical resistance, as well as recognized food compatibility. An infrared thermometer measures the temperature of the sample without contact.


The Activ W810 features complete and autonomous temperature control of the sample and of the sensor with heat transfer fluid. The setpoint temperature can be set by the user in a range of -10 ° C to + 20 ° C around the ambient temperature.

Requirements for the measurement of water activity according to ISO21807
“… It is recommended to measure Aw at 25 ° C. Variations of ± 1 ° C in the actual measurement temperature have no noticeable effect on water activity … “

The Activ W510 model has no built-in temperature control but can optionally accommodate connectors for the connection of an external circulation thermostatic bath (not supplied).

The instruments can be placed directly in a cold room or in a harsh environment in a range of temperatures from 0 to 50 ° C. The 2017 instrument range benefits from a new sensor with improved thermal insulation. The quality of measurements is not affected in anyway by the proximity of an air conditioner or an oven.


With large color LCD screens, smooth and user-friendly graphic interfaces, and high-capacity internal memories, Syntilab instruments allow optimum measurement use and traceability.

They can be connected to a computer or printer via standard USB and RS232 connectors.

While the instruments are factory-calibrated and offer excellent stability and linearity, they can be very easily controlled and recalibrated with suitable salt solutions. Recalibrations performed by the user can be cancelled if necessary.

These devices feature several modes of configurable measurement, allowing measurement times as fast as 45 seconds, as well as long analyses lasting up to ten days. They can either display Aw or ERH with a selectable 3 or 4 digit resolution. Syntilab Aw-meters are suitable for all types of situations and products, products containing large proportions of volatile substances such as alcohol or propylene glycol must be tested beforehand.

They also have an editable internal database that can store up to 1024 product sheets including the names of the products used, batch numbers and various information such as Aw limit values; water, salt or sugar contents; pH or viscosity. The contents of these sheets can be attached with the measurements made when exporting results to a computer ( see supplied software page ) or a printer.