<!--StartFragment -->Take advantage of the latest promotion from the Sonel Laboratory – when calibrating any Sonel MPI series meter, we’ll perform the adjustment free of charge.<!--EndFragment -->

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If your multifunction meter shows measurement errors during calibration but doesn’t require repair, it will be adjusted at no additional cost. After the service, you will receive a calibration certificate with results before and after the adjustment.

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<!--StartFragment -->How to take part in the promotion?<!--EndFragment -->

1. <!--StartFragment -->Submit a calibration order using our convenient online form - available from July 14 to October 14, 2025.<!--EndFragment -->
2. <!--StartFragment -->Choose the electronic version of the calibration certificate and accept the terms of the promotion.<!--EndFragment -->
3. <!--StartFragment -->Send or deliver your meter to us – we must receive it no later than October 20, 2025.<!--EndFragment -->
4. <!--StartFragment -->If adjustment is necessary – you’ll get it for free, along with a calibration certificate showing measurement results before and after the adjustment.<!--EndFragment -->

ORDER CALIBRATION

 

<!--StartFragment -->The promotion applies to all Sonel MPI series meters and is valid for orders sent to the Sonel Testing and Calibration Laboratory from Poland and other EU countries.<!--EndFragment -->

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The promotional campaign “Sonel MPI Adjustment Included with Calibration” runs from July 14 to October 14, 2025. The full terms and conditions are available [here].

 

Find out why regular adjustment is worth it.