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Instruments & models

JCI 131 Electrostatic Fieldmeter

PI Joseph Ulanowski
Operator: Alexandra Tsekeri
Participant University of Hertfordshire
Instrument picture

The JCI 131 Electrostatic Fieldmeter is a compact and robust instrument for the precise measurement of electric fields in adverse environmental conditions. It is particularly suitable for long term continuous monitoring of atmospheric electric fields - such as those associated with thunderstorms, volcanic activity or power-lines.

Electric field measurement sensitivities of 2, 20, 200 and 2000 kV/m are provided with high precision (<1.5%), low noise and a stable zero. When used as a potential probe, well away from nearby structures, the sensitivity is about 10 kV/m for 1kV of local space potential, although critical applications should be underwritten by in-situ calibration.

Instrument activity

Recent measurements

No measurements found.


For further information about the campaign please contact Vassilis Amiridis.


This campaign has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 654109.


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