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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Software Symmetron Sensors
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Full Symmetron products catalog

Click here to download our full line catalog in PDF form.

Solar plant monitoring system

Suni Measure solar radiation, external and surface temperature, humidity, wind speed, incoming (DC) and outgoing (AC) energy at your inverters, etc

Optional telemetry, alarms and data emails via GSM/GPRS/LAN/internet

For more information, click here

Solar Plant measurements and monitoring ╠easurement and monitoring

To verify correct operation, solar plants require monitoring, data recording and reporting.

The Symmetron solution is simple.

- SMS alarms on panel or inverter failure.
- Siren activation and SMS alarm on plant intrusion.
- Same system for all plants, regardless of component vendors.
- Selectable recorded parameters from solar radiation to wind speed and tracker angle.
- Tracker output for high wind speed.
- Presentation according to customer requirements (optional).
- Variety of data presentation methods.

For more information click here.

Remote communication methods with solar plants Remote communication methods with solar plants

Installation monitoring is key to successful solar plant operation and maintenance.
Monitoring is based on communication but each installation has its own requirements. To cover all needs, a variety of communication methods between a user and a solar plant are available:

- Broadband ADSL connections.
- Traditional GSM phone calls (modem to modem).
- Online GPRS connections.
- Data emailing.
- SMS data messaging.
- SMS alarms.
- Radio modem connections.

Click here for a Powerpoint presentation.



Symmetron Dataloggers




Temperature/ Humidity Sensors


PT100 Signal Converters


Solar Radiation Sensors


Pyranometer Signal Converters




Anemometer Signal Converters


Power/ Energy meters


Rain Height sensors