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.

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Full Symmetron products catalog

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

Wind Energy Measurement Solar Energy Measurement
Electric Energy Measurement Water Measurements
Meteorological Measurement Symmetron Dataloggers
Software Symmetron Sensors
Third Party Sensors Data Transmission

Meteorological sensors at competitive prices

Meteorological measurements sensors by Symmetron, suitable for solar, wind and other measurements.

- For more information about our External Temperature sensor, click here.

- For more information about our External Temperature/Humidity sensor, click here.

- For more information about our External Humidity sensor, click here.

- For more information about our Barometric Pressure sensor, click here.

Monitor the inclination of your met masts Record Elevation and Azimuth for any angle

The Symmetron Tiltometer is a tilt sensor with polar coordinates outputs.

- Operates in any position (3D).
- Elevation and Azimuth voltage output.
- RS232 port.
- SMS message when angle is found off limit (optional).

- Monitor a met mast's inclination at one or more heights.
- Optionally, receive an SMS when the inclination becomes lower than a limit (eg 89 degrees).
- Compatible with most dataloggers, including Stylitis models.

For more information click here.

Automatically test and calibrate wind vanes Automatically test and calibrate wind vanes

The Symmetron VeriVane system is designed for quick and easy testing and calibration of Wind Vanes.

VeriVane automatically rotates the wind vane in precise steps, measures vane output and records detailed results in an Excel workbook.
The user has only to mount the vane and start the test.

VeriVane includes all hardware, fixtures and software required to produce test reports.
For additional VeriVane information click here.

Anemometer, wind vane and pyranometer output signal converters
The TROPOS series converters by Symmetron, convert a sensor's output signal to voltage 0~2.5V, 0~5V, 0~10V or to current 4~20mA.

- For anemometer frequency (low level AC>80mVp-p or TTL level) converters to voltage or current, click here.
- For wind vane voltage converters to current, click here.
- For pyranometer low voltage amplifiers or for converters to current, click here.

Display devices


Temperature/ Humidity Sensors


Barometric Pressure Sensors


Anemometer/ Wind Vane Signal Converters


Wind vane verification and calibration


Position and Tilt sensors


Pyranometer Signal Converters