Additional to the standard CAT IV characteristics, the voltage level between ground and neutral or the neutral current flow can be detected. The device can be extended by special modules which guarantees a sustainable investment of modern meter testing on-site.
A new generation of meter testing
![](https://www.zera.de/wp-content/uploads/zera-mt310-tragbarer-pruefzaehler-portable-reference-meter.jpg 600w, https://www.zera.de/wp-content/uploads/zera-mt310-tragbarer-pruefzaehler-portable-reference-meter-400x400.jpg 400w, https://www.zera.de/wp-content/uploads/zera-mt310-tragbarer-pruefzaehler-portable-reference-meter-300x300.jpg 300w, https://www.zera.de/wp-content/uploads/zera-mt310-tragbarer-pruefzaehler-portable-reference-meter-150x150.jpg 150w)
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