Get up to 30% off calibration services during Black Weekend in our laboratory. The sooner you place your order, the bigger your discount! 

To take advantage of the promotion, order the calibration service using our online form. Each day of the promotion has a different discount code and a different discount percentage.

28 November 2025 (Friday) – code BF30 → 30% off
29 November 2025 (Saturday) – code BF20 → 20% off
30 November 2025 (Sunday) – code BF10 → 10% off

ORDER CALIBRATION

How to take part in the promotion?

1. Order the calibration service via the convenient online form between 28 November 2025 (00:00) and 30 November 2025 (23:59).
2. Enter the discount code in the appropriate field of the order form.
3. Send or deliver your instrument to us. We must receive it no later than 31 December 2025.

Additional promotion terms:

1. The promotion applies to all calibration orders placed via the electronic service order form.
2. The discount applies to the final amount of the entire order, regardless of the number of items.
3. Entering a valid discount code reduces the final amount by 30%, 20% or 10%.
4. Only one discount code can be used per order. Discounts cannot be combined.
5. The discount code may be used multiple times during the promotion period.
6. The promotion is valid only for customers from European Union member states.

 

Remember that at the Sonel Testing and Calibration Laboratory:

• you can order calibration through a convenient online form,
• you can check your order details at any time thanks to the order management panel,
• the service lead time is up to 5 working days,
• we calibrate not only Sonel instruments, but also devices from other manufacturers,
• we hold accreditation from the Polish Centre for Accreditation (PCA).