A free service to present real-time and historical data of Symmetron data loggers on the World Wide Web, with plots and statistics for each measuring station.

For more information about Captum service, click here.

For a free demonstration, click the Enter button below and login as a visitor, with user name Symmetron. View the site named Office Temperature



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Symmetron will be closed for summer vacation from August 3 to August 21, 2015. Thank you for your cooperation.

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Symmetron vacation 2014
The Symmetron company will remain closed for vacation from 2 to 24 August 2014.
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New data logger operating software Opton 4!
Replace old Opton and Stylitis Explorer with Opton 4, a more user friendly software, which cooperates with all Stylitis data loggers. Some new features are the global sites and connections management, the connection assistant and the produced site messages. For more information, click here
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Digital bus sensors option in Stylitis-10
Digital bus sensors (MODBUS RTU and SDI-12) option in Stylitis-10. Conversion of the PERIPHERAL port to RS-485.
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Stylitis-10 with internal GPS module
The Stylitis-10 datalogger is also available with an internal modem with a GPS module, to receive location and time information.
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New software: Stylitis Explorer 4
Download the new version of Stylitis Explorer 4, without uninstalling the old version (3.). Versions 3. and 4. can be both installed in your computer.
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Price: CALL €
Manufacturer: SYMMETRON

Symmetron Apeicon is an external web server for Stylitis dataloggers.
It allows easy creation of custom web pages, complete with customer photos, logos and data from one or more dataloggers.

Designed for limited physical space, it is compact, lightweight with very low power consumption.
It gets real-time data from one or more Stylitis dataloggers and updates one or more custom-built web pages.
The built-in web server presents the web pages to any standard browser.
Users may configure Apeicon for local IP address and measurement channels using the included software.

Custom web pages may be created and edited by anyone knowing basic HTML. Alternatively Symmetron can create web pages to customer specifications.
Web pages are available to the local network or via internet to any part of the world.
You can also connect a computer monitor or TV screen directly to Apeicons VGA port.



Apeicon Brochure


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Stylitis-10: Solar, wind, hydro, energy data logger and controller


Stylitis-20: Waterproof water measurements datalogger and controller


Stylitis-41: Wind Measurements data logger


Stylitis-101: Solar and wind data logger, suitable for W/T power curve analysis




Data public display




Memory Cards